【Author】 Ahl, Amanda Goto, Mika Yarime, Masaru Tanaka, Kenji Sagawa, Daishi

【Source】RENEWABLE & SUSTAINABLE ENERGY REVIEWS

【影响因子】16.799

【主题类别】

区块链应用-实体经济-能源领域

【Abstract】The energy sector is undergoing a transition of decarbonization, decentralization, and digitalization. This paper explores the application of blockchain in this transition. Through qualitative content analysis, expert interviews and discussion rooted in recent literature, key insights on the practical challenges and opportunities of blockchain energy applications are investigated. This is done in technological, economic, social, environmental, and institutional dimensions in order to propose holistic insights. Key dentified issues include scalability, data privacy, costs of change, market dynamics, user experience, skills, multi-stakeholder governance, and regulatory change. Key identified opportunities also range across these dimensions, such as blockchain advancements, power market development, user research, and regulatory sandboxes. While most research on blockchain energy applications has been from the technological lens, this paper contributes with a multi-dimensional approach. The interrelatedness among these dimensions is one of the key messages of this paper. Both corporate strategy and public policy development need to integrate user behavior research, business model innovation and regulatory experimentation for a holistic approach in understanding and implementing blockchain, and other emerging technologies. It is suggested that the multi-dimensional challenges and opportunities identified in this study, and functioning of their interrelatedness, are of interest for further exploration both in academia and among practitioners.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Blockchain; Peer-to-peer; Digitalization; Distributed energy resources

【发表时间】2022

【收录时间】2022-07-26

【文献类型】 实证性文章

【DOI】 10.1016/j.rser.2022.112623

【Author】 Velliangiri, S. Manoharn, Rajesh Ramachandran, Sitharthan Venkatesan, Krishnasamy Rajasekar, Vani Karthikeyan, P. Kumar, Pardeep Kumar, Abhishek Dhanabalan, Shanmuga Sundar

【Source】IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS CCF-C

【影响因子】11.648

【主题类别】

区块链技术-协同技术-物联网

【Abstract】The present trend of automation anddata interchange in industrial technology is known as Industry 4.0. Industry 4.0 is altering its next generation of distribution networks by making them more responsive and efficient. There are various issues when implementing Internet of Thing (IoT) devices in an Industry 4.0 scenario, mainly due to reduced IoT nodes or devices with insufficient infrastructure to operate security solutions. As a result, securing the environment will require a lightweight and effective security solution. The authors of this study offer a lightweight and flexible authentication method as part of an access control strategy for secure data exchange in-vehicle networks. Lightweight operations, hash functions, XOR operations, and concatenation are all used in the proposed protocol. The security of this approach is also evaluated using AVISPA. The authentication process between IoT networks and resilience to various security threats will be demonstrated. The experimental analysis shows that the computational cost attained is 7.96 s, and the communication cost attained is 834 bits. Similarly, the resource utilization for this computation is 11%, and the average verification time is 7 ms. The experimental analysis demonstrates that the proposed method is efficient with lower computational cost, communication costs, verification cost, and resource utilization than the existing state-of-the-art approaches

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Fourth Industrial Revolution; Authentication; Security; Elliptic curves; Elliptic curve cryptography; Blockchains; Cryptography; Elliptic curve cryptography (ECC); Industry 4; 0; Internet of Things (IoTs); mutual authentication

【发表时间】2022

【收录时间】2022-07-26

【文献类型】 实证性文章

【DOI】 10.1109/TII.2021.3139609

【Author】 Teimoori, Zeinab Yassine, Abdulsalam Hossain, M. Shamim

【Source】IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS CCF-C

【影响因子】11.648

【主题类别】

区块链应用-实体经济-能源领域

【Abstract】The fast-growing electric vehicles (EVs) industry requires a well-designed recommendation system to locate charging stations while ensuring private data protection. This article proposes a secure cloudlet-based recommendation system for EVs. Unlike conventional methods where training a recommender model involves direct data sharing between data holders, our model utilizes a secure vertical federated learning technique, in which EVs data do not leave the platforms. To improve the efficiency of the model and to alleviate the communication-related concerns in our recommender model, cloudlet-based data aggregator(s) are used as a replacement for the existing centralized architectures. To enhance the security of our system, blockchain technology is incorporated to generate a trusted network of cloudlets that are responsible for transmitting the locally computed training parameters. The simulation results achieved from our proposed recommendation system show that the distribution of EVs over a designated area with charging stations is more optimal, and the proposed decentralized recommender with 10 cloudlets is 5.2 s quicker than a conventional centralized model.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Blockchains; Cloud computing; Data models; Collaborative work; Charging stations; Training; Real-time systems; Blockchain; charging station recommendation; cloudlet; electric vehicles (EVs); vertical federated learning (VFL)

【发表时间】2022

【收录时间】2022-07-26

【文献类型】 实证性文章

【DOI】 10.1109/TII.2022.3148997

【Author】 Qahtan, Sarah Sharif, Khaironi Yatim Zaidan, A. A. Alsattar, H. A. Albahri, O. S. Zaidan, B. B. Zulzalil, Hazura Osman, M. H. Alamoodi, A. H. Mohammed, R. T.

【Source】IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS CCF-C

【影响因子】11.648

【主题类别】

区块链应用-实体经济-医疗领域

【Abstract】The evaluation, importance and variation nature of multiple security and privacy properties are the main issues that make the benchmarking of blockchain-based IoT healthcare Industry 4.0 systems fall under the multi-criteria decision-making (MCDM) problem. In this article, one of the recent MCDM weighting methods called fuzzy weighted with zero inconsistency (FWZIC) is effective for weighting the evaluation criteria subjectively without any inconsistency issues. However, considering the advantages of spherical fuzzy sets in providing a wide range of options to decision-makers and efficiently dealing with vagueness, hesitancy and uncertainty, this article formulated a new version of FWZIC for weighting the security and privacy properties, that is, spherical FWZIC (S-FWZIC). Moreover, an integrated MCDM framework was developed for benchmarking blockchain-based IoT healthcare Industry 4.0 systems on the basis of multi security and privacy properties. In the first phase of the methodology, a decision matrix is formulated based on the intersection of "blockchain-based Internet of Things healthcare Industry 4.0 systems" and "security and privacy properties" (i.e., user authentication, access control, privacy protection, integrity availability and anonymity). In the second phase, the weights of each security and privacy property are calculated through the S-FWZIC method. Then, these weights are employed to benchmark blockchain-based IoT healthcare Industry 4.0 systems through the combined grey relational analysis-technique for order of preference by similarity to ideal solution (GRA-TOPSIS) and the bald eagle search (BES) optimization method. Results indicate the following: First, the S-FWZIC method efficiently weighs the security and privacy properties, indicating that access control has the highest significance weight of 0.2070, while integrity has the lowest weight (0.0646); and second, the combination of the GRA-TOPSIS and the BES optimization method effectively ranks the systems. The evaluation was conducted using sensitivity analysis, revealing high correlation results over all the discussed scenarios of changing the weights of the criteria. The implications of this article can assist medical organisation administrators in selecting the most secure and appropriate system and the developers of such systems in future directions.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Medical services; Fourth Industrial Revolution; Privacy; Benchmark testing; Uncertainty; Access control; Optimization methods; Blockchain; healthcare industry 4; 0 systems; security and privacy

【发表时间】2022

【收录时间】2022-07-26

【文献类型】 实证性文章

【DOI】 10.1109/TII.2022.3143619

【Author】 Le, Tuan-Vinh Hsu, Chien-Lung Chen, Wei-Xin

【Source】IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS CCF-C

【影响因子】11.648

【主题类别】

区块链技术-核心技术-加密算法

【Abstract】In the era of Industry 4.0 and digital transformation, smart grid (SG) plays an important role in the construction of various smart places. Logs produced by electrical appliances recording power consumption within the grid contain private information and may be collected as evidence for the services of dispute resolution or digital forensics. Therefore, security of the logs is of paramount importance. Our work designs a blockchain-enabled log management scheme with nonrepudiation for SGs. In this article, we employ ciphertext-policy attribute-based encryption to establish a fine-grained access control of the logs, which addresses data confidentiality concern. In addition, we introduce a hybrid blockchain system generating novel signature chains, for achieving an efficient private log protection system with a lot of properties including data loss prevention, tamper resistance, immutability and nonrepudiation. Employing various cost-saving solutions, our scheme achieves an efficient communication with more functionalities and security features, compared with the predecessor works.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Blockchains; Access control; Informatics; Digital signatures; Servers; Encryption; Computational modeling; Blockchain; ciphertext-policy attribute-based encryption (CP-ABE); digital signature; nonrepudiation; power usage; signature chain; signcryption-based access control

【发表时间】2022

【收录时间】2022-07-26

【文献类型】 实证性文章

【DOI】 10.1109/TII.2021.3136580

【Author】 Kumar, Prabhat Kumar, Randhir Gupta, Govind P. Tripathi, Rakesh Srivastava, Gautam

【Source】IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS CCF-C

【影响因子】11.648

【主题类别】

区块链应用-实体经济-工业领域

【Abstract】The industrial Internet of Things (IIoT) is a fast-growing network of Internet-connected sensing and actuating devices aimed to enhance manufacturing and industrial operations. This interconnection generates a high volume of data over the IIoT network and raises serious security (e.g., the rapid evolution of hacking techniques), privacy (e.g., adversaries performing data poisoning and inference attacks), and scalability issues. To mitigate the aforementioned challenges, this article presents, a new privacy-preserved threat intelligence framework (P2TIF) to protect confidential information and to identify cyber-threats in IIoT environments. There are two major elements in the proposed P2TIF framework. First, a scalable blockchain module that enables secure communication of IIoT data and prevents data poisoning attacks. Second, a deep learning module that transforms actual data into a new format and protects data from inference attacks using a deep variational autoencoder (DVAE) technique. The encoded data are then employed by a threat detection system using attention-based deep gated recurrent neural network (A-DGRNN) to recognize malicious patterns in IIoT environments. The proposed framework is validated using two different network data sources, i.e., ToN-IoT and IoT-Botnet. Security analysis and experimental results revealed the high efficiency and scalability of the proposed P2TIF framework.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Industrial Internet of Things; Blockchains; Security; Deep learning; Scalability; Computational modeling; Transforms; Blockchain; deep learning (DL); industrial Internet of Things (IIoT); privacy-preservation; threat intelligence (TI)

【发表时间】2022

【收录时间】2022-07-26

【文献类型】 实证性文章

【DOI】 10.1109/TII.2022.3142030

【Author】 Nguyen, Son Chen, Peggy Shu-Ling Du, Yuquan

【Source】TRANSPORTATION RESEARCH PART E-LOGISTICS AND TRANSPORTATION REVIEW

【影响因子】10.047

【主题类别】

区块链应用-实体经济-交通领域

【Abstract】Blockchain applications in maritime logistics services face uncertainties and risks, obstructing a broader and more sustainable adoption. Although the operational risk of blockchain-integrated systems (BISs) is significant, studies in this area are still conceptual and scarce. This research is a mixed-methods risk analysis focusing on (1) modeling the risk situation by a connected network of potential disruptive events in container shipping BISs, and (2) applying a quantitative risk analysis with probabilistic indexes considering the multiplicity of multi-event risk scenarios (MESs). Thirty-two telephone interviews with experts from container terminal operators, shipping companies, and freight forwarders helped establish a risk network with the description of 25 vertices and 54 directed connections. The quantitative analysis of 64 web survey responses provided insights and foresight about different characteristics of each risk and causal connection. The results enable a comprehensive view of the potential failure modes of blockchain applica-tions. This study is the first to explore the potential risk situation in container shipping BISs with inputs from the industry. The applied methodological framework expands the toolkit of risk re-searchers, analysts, and managers against the fast-paced development of digitalization in mari-time logistics and supply chain operations

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Blockchain application; Risk analysis; Container shipping; Blockchain-integrated system; Network analysis; Digitalization

【发表时间】2022

【收录时间】2022-07-26

【文献类型】 实证性文章

【DOI】 10.1016/j.tre.2022.102764

【Author】 Cao, Yu Yi, Chaoqun Wan, Guangyu Hu, Hanli Li, Qingsong Wang, Shouyang

【Source】TRANSPORTATION RESEARCH PART E-LOGISTICS AND TRANSPORTATION REVIEW

【影响因子】10.047

【主题类别】

区块链应用-实体经济-农牧领域

【Abstract】The traditional agricultural supply chain (ASC) has been overwhelmed by several challenges, including financing risk, counterparty risk, and lack of consumer trust. Platforms based on blockchain technology combined with Internet-of-Things technology have emerged to address these challenges by improving supply chain visibility, guaranteeing the execution of contracts, and increasing the authenticity of products' provenance information in the ASC. This study an-alyzes how the adoption of a blockchain-based platform can affect the decisions of ASC partici-pants and identifies how the platform creates value for the supply chain by addressing these three challenges. We consider a two-level supply chain featuring a typical cooperative and a buyer and establish stylized game models with and without the blockchain-based platform. By comparing equilibrium outcomes with and without the blockchain-based platform, we show that the involvement of the blockchain-based platform can lead to increased production quantity and total surplus of the supply chain. This can also motivate more sustainability/green investment to produce greener products. Interestingly, we show that the value of the blockchain-based platform decreases in the credibility of the business environment in which the supply chain operates. Furthermore, the buyer will always benefit from the established blockchain-based platform, whereas the cooperative can benefit in most cases but could be worse off under certain conditions. The adoption and operational costs could outweigh the benefits caused by the addition of the blockchain-based platform

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Blockchain-based platforms; Agricultural supply chain; Financing risk; Counterparty risk; Consumer trust

【发表时间】2022

【收录时间】2022-07-26

【文献类型】 实证性文章

【DOI】 10.1016/j.tre.2022.102731

【Author】 De Giovanni, Pietro

【Source】INTERNATIONAL JOURNAL OF OPERATIONS & PRODUCTION MANAGEMENT

【影响因子】9.360

【主题类别】

区块链应用-实体经济-供应链

【Abstract】Purpose This paper aims to analyze the benefits of the blockchain to the circular economy (CE), which is composed of both closed-loop supply chain (CLSC) systems and reverse omnichannel solutions. By ensuring transparency, traceability, visibility and security, the blockchain allows firms to acquire operational capabilities through a CLSC and service capabilities through a reverse omnichannel, which can boost business performance considerably. The related network of relationships can be reinforced by establishing incentives, which entail both smart contracts in the blockchain and active return approaches in CE. Design/methodology/approach After identifying the boundaries of the theoretical framework, several research hypotheses are developed according to the literature review and emerging gaps. These gaps link to the impact of the blockchain on CE systems (CLSC and reverse omnichannel), as well as the influence on business performance. The hypotheses are then tested using structural equation modeling and adopting a partial least squares-path modeling technique on a dataset composed of 157 firms. Finally, multigroup analysis is used to test the impact of incentives on the research hypotheses. Findings The blockchain facilitates a more efficient CE system, although reverse omnichannel solutions seldom bring any benefits to performance. The shift from a passive to an active return approach must be carefully evaluated. The CLSC network can benefit from an active return approach by developing appealing incentives for collectors and enhancing the positive effects of the blockchain. In contrast, consumer incentives can have detrimental effects on the blockchain. Various combinations of incentives can only bring a few business performance increases, while collector incentives are vital to reinforce the CE system's operational and service capabilities. Originality/value This paper takes a new approach toward the study of CE, which considers a dual circular system composed of a CLSC and a reverse omnichannel. The research explores whether the adoption of blockchain technology enables better return processes by improving the operations in CLSC and services in reverse omnichannel. Finally, this is the first empirical work to evaluate the benefits emerging from incentives, which can activate smart contracts in the blockchain and enable active return approaches in CE.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Circular economy; Blockchain; Closed-loop supply chain; Reverse omnichannel; Incentive mechanisms

【发表时间】

【收录时间】2022-07-26

【文献类型】 理论性文章

【DOI】 10.1108/IJOPM-07-2021-0445

【Author】 Choi, Tsan-Ming Shi, Xiutian

【Source】IEEE TRANSACTIONS ON ENGINEERING MANAGEMENT

【影响因子】8.702

【主题类别】

区块链应用-实体经济-交通领域

【Abstract】During the recent COVID-19 (CoV) global outbreak, there is a sharp decline of revenue of on-demand ride-hailing (ODR) platforms because people have serious worries of infection in the shared vehicles. Blockchain, which supports cryptocurrency and creates full traceability of the service history of each car and driver, may come to rescue by allowing the platform to offer only the "safe cars" to consumers. Motivated by the real world challenges associated with the CoV outbreak for the ODR platform, we build game-theoretical models based on the M/M/n queuing system to explore if and how blockchain can help. In the basic model, the ODR platform decides the service price and special hygiene level. Comparing between the cases with and without blockchain, we find that blockchain implementation increases both the service price and hygiene level. In addition, when the consumers' inherent worry of infection is substantially large, implementing blockchain achieves all-win for the ODR platform, drivers and consumers. In the extended models, we first consider the case when the special hygiene level is determined by the drivers under a mixed-leadership game and then explore the case when customers are risk averse. The main findings about blockchain adoption remain valid in both cases. However, when the drivers take charge of the special hygiene level, both optimal decisions are lower in most cases. It is also important to make efforts to reduce consumers' feeling volatility toward service valuation for improving the value of blockchain adoption and related performances.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Blockchains; Vehicles; COVID-19; Pricing; Biological system modeling; DVD; Analytical models; Blockchain; coronavirus outbreak; pricing; ride-hailing platform operations

【发表时间】

【收录时间】2022-07-26

【文献类型】 理论性文章

【DOI】 10.1109/TEM.2021.3131044

【Author】 Bui, Hang Thanh Hussain, Omar Khadeer Prior, Daniel Hussain, Farookh K. Saberi, Morteza

【Source】KNOWLEDGE-BASED SYSTEMS CCF-C

【影响因子】8.139

【主题类别】

区块链技术-核心技术-共识机制

【Abstract】Blockchain is being used in various global supply chains with its ever-increasing maturity and popularity. However, in the presence of subjective information that does not have a digital footprint, blockchain application is a grey area. This is due to the difficulty in confirming the authenticity or legitimacy of information before achieving consensus on it using existing mechanisms such as Proof of Work (PoW), Proof of Authority (PoA) or Proof of Stake (PoS). In this paper, we attempt to address this issue. Specifically, we propose the Proof by Earnestness (PoE) consensus mechanism that determines the subjective information's truthfulness before further processing and formalising in blockchains. We consider supply chain risk management (SCRM) as our application area due to the vast amount of available subjective information. (C) 2022 Elsevier B.V. All rights reserved.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Blockchains; Subjective information; Authenticity; Consensus

【发表时间】2022

【收录时间】2022-07-26

【文献类型】 理论性文章

【DOI】 10.1016/j.knosys.2022.108972

【Author】 Fernando, Yudi Tseng, Ming-Lang Wahyuni-TD, Ika Sari Sroufe, Robert Mohd-Zailani, Nik Ida Amiera

【Source】INTERNATIONAL JOURNAL OF LOGISTICS-RESEARCH AND APPLICATIONS

【影响因子】5.992

【主题类别】

区块链应用-实体经济-能源领域

【Abstract】This study aims to investigate organisational factors of blockchain adoption for carbon trading and energy efficiency. This study develops a new theoretical model based on technology, organisation and environment (TOE), and Diffusion of Innovation (DOI) theories to fill the literature gaps. The underpinning theories are utilised to capture the motivation of manufacturing industry firms to adopt blockchain technology while supporting carbon trading activities. Using survey data, we examine the perception of early adopters of blockchain technology and their relationships to energy efficiency. The results show that attributes such as the contract system, firm size, and compatibility significantly affect energy efficiency. Paradoxically, top management support, competitive pressure, regulatory support, relative advantage, and complexity were not, as prior literature suggests, crucial drivers. Adopting blockchain technology can help a firm improve business transparency, manage energy consumption, and provide a strong business case for firms in this study.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Blockchain technology adoption; carbon trading; energy efficiency; diffusion of innovation; technology; organisation and environment theory

【发表时间】

【收录时间】2022-07-26

【文献类型】 实证性文章

【DOI】 10.1080/13675567.2022.2090527

【Author】 Wu, Qing Lai, Taotao Zhang, Leyou Mu, Yi Rezaeibagha, Fatemeh

【Source】JOURNAL OF SYSTEMS ARCHITECTURE

【影响因子】5.836

【主题类别】

区块链技术-核心技术-加密算法

【Abstract】With the arrival of the 5G era, fast and secure data sharing is attracting increased attention. Among of the presented solutions, keyword search plays an important role since it can identify users and search ciphertext without decryption. However, the existing searchable algorithms have many limitations, such as powerful central authority, match processes being only carried out on the cloud server, and center corruption and single point of failure being easy to cause. Presently, the fairness of the keyword search is still a challenge. To solve these problems, we present a multi-authority and multi-cloud keyword search scheme based on the consortium blockchain and attribute-based encryption. Under this framework, multi-cloud block storage technique is used to address the unreliability of cloud servers, where at least two ciphertext files are stored in blocks on multiple cloud servers. It can resist malicious leaks, ciphertext tampering, and deletion of ciphertext by cloud servers. Blockchain allows the proposed scheme to achieve the integrity and correctness of the encrypted data, which also solves the fairness of search results. Furthermore, the scheme realizes privacy protection by hiding the keyword and the access policy in the trapdoor matching process. Finally, the security analyses and performance comparisons show the advantages of the proposed scheme over the existing work.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Searchable encryption; Multi-authority; Multi-cloud; Privacy protection; Consortium blockchain

【发表时间】2022

【收录时间】2022-07-26

【文献类型】 理论性文章

【DOI】 10.1016/j.sysarc.2022.102569

【Author】 Bhattacharya, Pronaya Patel, Farnazbanu Tanwar, Sudeep Kumar, Neeraj Sharma, Ravi

【Source】JOURNAL OF PARALLEL AND DISTRIBUTED COMPUTING CCF-B

【影响因子】4.542

【主题类别】

区块链技术-核心技术-挖矿策略

【Abstract】In this paper, we propose a mobile blockchain (MB) based mining-as-a-service (MaaS) scheme, MBMaaS for resource-constrained industrial internet-of-things (IIoT) environments. The scheme addresses the research gaps of fixed static allocation for miners to perform computationally intensive mining tasks through a multi-hop computational offloading (CO) scheme and addresses an auction mechanism for a fair bidding process among the miner nodes. The scheme operates in three phases. In the first phase, a multi-hop CO scheme with a fair incentive policy is formulated for miners. The CO schemes offer guaranteed offloading services to mobile devices from far-edge systems through a chain of neighbor nodes. Then, in the second phase, MaaS is proposed to leverage expensive mining tasks through 5Genabled pico/femtocells. Integration of 5G allows massive end-to-end device and service connectivity. As IIoT ecosystems have limited memory and compute requirements, MaaS assures that the proposed consensus has a responsive validation and mining time. To make the data exchange in the consensus process lightweight, and allow a large number of sensors to share the data in a lightweight manner, an effective consensus mechanism Lightweight Proof-of-Proximity (LPoP), is proposed that forms group validations instead of single block validation. The data is exchanged through javascript object notation (JSON) format, maintaining a steady transaction rate. MB-MaaS is compared against the existing scheme for parameters bid thresholds and request servicing times, and mining and consensus formation. For example, the request serving time at 12 requests is improved by 56.78%, and a significant improvement of 26.47% is observed for processed blocks; parsing time on average is improved by 7.89%. The comparative analysis suggests that the scheme is more efficient than other competing approaches. (c) 2022 Elsevier Inc. All rights reserved.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Mobile blockchain; Mobile edge computing; 5G; Mining-as-a-Service; Data offloading

【发表时间】2022

【收录时间】2022-07-26

【文献类型】 实证性文章

【DOI】 10.1016/j.jpdc.2022.05.008

【Author】 Lai, Han Liao, Huchang Long, Yilu Zavadskas, Edmundas Kazimieras

【Source】INTERNATIONAL JOURNAL OF FUZZY SYSTEMS

【影响因子】4.085

【主题类别】

区块链技术-平台项目-Hyperledger Fabric

【Abstract】The existing score functions of Fermatean fuzzy number (FFN) show some defects. In addition, the evaluation information given by decision-makers in real decision-making processes may be several discrete values rather than single value, which cannot be represented by the classical Fermatean fuzzy set (FFS). The combined compromise solution (CoCoSo) method can get a compromise solution by incorporating multi-aggregation strategy; however, the final aggregation operator adopted in the CoCoSo method may cause irrational results. To bridge the above gaps, in this study, we first determine a new score function of FFNs. Then, we define the hesitant Fermatean fuzzy sets based on hesitant fuzzy sets and FFSs to process uncertain information flexibly. Next, we develop an ensemble ranking approach to overcome the limitation of the original CoCoSo method regarding aggregation bias. Afterwards, we propose a hesitant Fermatean fuzzy CoCoSo method for multiple criteria group decision-making. Last, we verify its effectiveness and practicability through a case study on the selection of blockchain platform. At the same time, we perform sensitivity analysis to check the robustness of the method, and emphasize its advantages through comparative analysis.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Multiple criteria group decision-making; Hesitant Fermatean fuzzy sets; Hesitant fuzzy sets; Fermatean fuzzy sets; CoCoSo

【发表时间】

【收录时间】2022-07-26

【文献类型】 实证性文章

【DOI】 10.1007/s40815-022-01319-7

【Author】 Bianchi, Daniele Babiak, Mykola Dickerson, Alexander

【Source】JOURNAL OF BANKING & FINANCE

【影响因子】3.539

【主题类别】

区块链技术-平台项目-数字货币

【Abstract】We provide empirical evidence within the context of cryptocurrency markets that the returns from liquidity provision, proxied by the returns of a short-term reversal strategy, are primarily concentrated in trading pairs with lower levels of market activity. Empirically, we focus on a moderately large cross section of cryptocurrency pairs traded against the U.S. Dollar from March 1, 2017 to March 1, 2022 on multiple centralised exchanges. Our findings suggest that expected returns from liquidity provision are amplified in smaller, more volatile, and less liquid cryptocurrency pairs where fear of adverse selection might be higher. A panel regression analysis confirms that the interaction between lagged returns and trading volume contains significant predictive information for the dynamics of cryptocurrency returns. This is consistent with theories that highlight the role of inventory risk and adverse selection for liquidity provision.

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【Keywords】Liquidity provision; Short-term reversal; Trading volume; Empirical asset pricing; Adverse selection

【发表时间】2022

【收录时间】2022-07-26

【文献类型】 实证性文章

【DOI】 10.1016/j.jbankfin.2022.106547

【Author】 Mukherjee, Arnab Sahoo, Swagatika Halder, Raju

【Source】PEER-TO-PEER NETWORKING AND APPLICATIONS CCF-C

【影响因子】3.488

【主题类别】

区块链技术-平台项目-Hyperledger Fabric

【Abstract】There has been an increasing demand for shaping the world's cities into smart cities by adopting modern technological solutions. In recent times, Blockchain has emerged as a most promising technology with a wide range of applications, and its adoption to several smart city solutions is also observed. However, these existing blockchain-based smart city solutions are restricted to individual sectors only, and there is a lack of connectivity and composability among them. This makes them incapable of providing hassle-free services which involve multiple sectors. In fact, a fully-fledged smart city solution demands the integration of different solutions pertaining to different sectors, leading to a seamless interaction among its stakeholders across the boundary. To this aim, in this paper, we propose a hybrid blockchain-based platform to foster a complete smart city solution with the integration of different crucial sectors involved in the functioning of the smart city. We design an architecture for multiple blockchain networks to connect and share information among themselves through intra- and inter-blockchain communication, enabling citizens to avail inter-blockchain services as well. We also address the security and privacy aspects of intra- and inter-network transactions. We present our working prototype using Hyperledger Fabric and Node.JS. The empirical evidence acquired from system benchmarks and load testings is encouraging, with an enhanced throughput for intra-blockchain transactions on Hyperledger Fabric, compared to the Ethereum blockchain platform. To the best of our knowledge, this is the first proposal of its kind, addressing the integration of different smart city sectors through interconnected blockchain networks.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Smart City; Inter-Blockchain Communication; Access Control; Information Security; Hyperledger Fabric

【发表时间】

【收录时间】2022-07-26

【文献类型】 实证性文章

【DOI】 10.1007/s12083-022-01338-z

【Author】 Albrecher, Hansjoerg Finger, Dina Goffard, Pierre-O.

【Source】INSURANCE MATHEMATICS & ECONOMICS

【影响因子】2.168

【主题类别】

区块链治理-技术治理-挖矿检测

【Abstract】The resource-consuming mining of blocks on a blockchain equipped with a Proof-of-Work consensus protocol bears the risk of ruin, namely when the operational costs for the mining exceed the received rewards. In this paper we investigate to what extent it is of interest to join a mining pool that reduces the variance of the return of a miner for a specified cost for participation. Using methodology from ruin theory and risk sharing in insurance, we quantitatively study the effects of pooling in this context and derive several explicit formulas for quantities of interest. The results are illustrated in numerical examples for parameters of practical relevance. (C)& nbsp;2022 The Author(s). Published by Elsevier B.V.& nbsp;& nbsp;

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【Keywords】Ruin theory; Blockchain; Miner; Cryptocurrency; Risk sharing

【发表时间】2022

【收录时间】2022-07-26

【文献类型】 实证性文章

【DOI】 10.1016/j.insmatheco.2022.04.004

【Author】 Li, Dacan Gong, Yuanyuan Zhang, Xianhui Huang, Min

【Source】SECURITY AND COMMUNICATION NETWORKS CCF-C

【影响因子】1.968

【主题类别】

区块链应用-实体经济-医疗领域

【Abstract】Aiming at the problems of long life cycle complex roles of participants, diverse risk factors, poor supervision coverage and difficult information traceability of TCM (Traditional Chinese Medicine) supply chain, this paper constructs a TCM quality safety traceability system based on blockchain technology by analyzing the business process and supervision characteristics of TCM supply chain. Blockchain technology is a new application mode of computer technology such as distributed data storage, peer-to-peer transmission, consensus mechanism, encryption algorithm, and other computer technologies. It has the characteristics of "decentralization, nontampering, transparent and open, and data traceability." The function of nontampering, hash function, and time stamp can effectively solve the traceability problem of TCM supply chain. Through the analysis of the blockchain TCM traceability principle and network structure, combined with the actual business process of TCM traceability, this paper designs the blockchain TCM quality safety traceability system, analyzes its overall structure, data storage mode, digital signature, consensus algorithm, and main functions, and preliminarily constructs a new model of TCM quality safety traceability management based on blockchain technology. Using blockchain technology to realize the quality safety traceability of TCM, we can complete the omnidirectional, multiangle, and wide coverage of the data and information in whole supply chain of TCM breeding and seedling raising, planting, innovation and research and development, processing of TCM pieces, circulation of TCM, and consumption, so as to realize that the main body of responsibility of TCM can be put on record, the production records can be queried, product flow can be traced, quality safety can be forewarned, main responsibility can be identified, regulatory information can be shared, and product source can be traced.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】

【发表时间】2022

【收录时间】2022-07-26

【文献类型】 理论性文章

【DOI】 10.1155/2022/7011145

【Author】 Zhou, Zhongbao Liu, Xingfen Zhong, Feimin Cao, Yuan Zheng, Long

【Source】JOURNAL OF INDUSTRIAL AND MANAGEMENT OPTIMIZATION

【影响因子】1.411

【主题类别】

区块链应用-实体经济-供应链

【Abstract】This paper considers a supply chain that includes one supplier and one retailer, in which the retailer has a more accurate demand forecast. The blockchain technology can verify the authenticity of the information, then the retailer can choose to truly share the demand information with the supplier by adopting such a costly technology. We discuss three scenarios based on signaling game: the retailer bears all the cost (no subsidy), the supplier bears part of the cost by providing direct subsidy or wholesale discount, respectively. Specifically, in a demand information asymmetric setting, we mainly focus on exploring the conditions of retailer adopting blockchain technology and the supplier's subsidy strategy choice, and further verify the robustness of the model by considering the retailer's risk aversion or multiple suppliers. In all scenarios, we find that the retailer will apply threshold strategy to adopt blockchain technology. The retailer's willingness to adopt blockchain technology is negatively correlated with the corresponding adoption cost, the supplier's profit level, and positively correlated with the number of suppliers. Additionally, we find the supplier can profit from providing subsidies when the cost of adopting blockchain technology is around a medium level, and the direct subsidy is superior to wholesale discount. More surprisingly, we find subsidies may work to the disadvantage of the subsidized party. Specifically, compared to no subsidy, we find the direct subsidy and the wholesale discount can increase the retailer's willingness to adopt blockchain technology, but hurt the retailer's as well as the supply chain's profits.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Supply chain management; blockchain; demand signaling; information asymmetry

【发表时间】

【收录时间】2022-07-26

【文献类型】 理论性文章

【DOI】 10.3934/jimo.2022087

【Author】 Zhao, Liutao Zhang, Jiawan Zhong, Lin

【Source】CONNECTION SCIENCE CCF-C

【影响因子】0.000

【主题类别】

区块链技术-核心技术-加密算法

【Abstract】Due to existing blockchain systems concentrate mainly on privacy protection but lack payment statistics and supervision, we propose a blockchain-based transaction system with payment statistics and supervision. In the system, a payer uses a homomorphic encryption scheme to protect payment amounts. After the transaction is recorded in the blockchain, not only the payee can decrypt the payment amounts and use for future payment, but also the payer can even decrypt it and use for payment statistics. Besides, two supervisors can independently decrypt all users' payment amounts to master the whole economic dynamism and detect illegal transactions. Comparing with existing schemes, our homomorphic scheme only increases a little length of ciphertext, but supports payment amounts decryption by the payer, an additional two receivers. Finally, analyses show that our system is extremely efficient.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Blockchain; homomorphic encryption; privacy protection; payment statistics; supervision

【发表时间】2022

【收录时间】2022-07-26

【文献类型】 实证性文章

【DOI】 10.1080/09540091.2022.2080181

【Author】 Yao, Shixiong Jing, Pujie Li, Pei Chen, Jiageng

【Source】CONNECTION SCIENCE CCF-C

【影响因子】0.000

【主题类别】

区块链技术-核心技术-加密算法

【Abstract】The outbreak of COVID-19 has brought great pain to people around the world. As an epidemic prevention and control measure, the health QR code (HC) has been designed to trace the confirmed cases and close contacts quickly. Although some existing health code schemes preserve the privacy, but most of them are either unsupported for fine-grained auditability or centralised health code storage. Therefore, we propose a multi-dimension traceable privacy-preserving HC scheme based on blockchain. It prevents health code information being tampered with and supports the traceability of virus transmission chain. We utilise attribute-based encryption to protect residents' privacy information and achieve fine-grained access control. Furthermore, to support the multi-dimension traceability by the epidemic prevention and control departments, the searchable encryption has been introduced. Finally, we give the security analysis and performance evaluation to verify the feasibility and practical significance of our scheme.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Health QR code; HyperLedger Fabric; CP-ABE; searchable encryption

【发表时间】2022

【收录时间】2022-07-26

【文献类型】 理论性文章

【DOI】 10.1080/09540091.2022.2077912