【Author】
Wadhwa, Shivani; Rani, Shalli; Kavita; Verma, Sahil; Shafi, Jana; Wozniak, Marcin
【Abstract】Blockchain technology is gaining a lot of attention in various fields, such as intellectual property, finance, smart agriculture, etc. The security features of blockchain have been widely used, integrated with artificial intelligence, Internet of Things (IoT), software defined networks (SDN), etc. The consensus mechanism of blockchain is its core and ultimately affects the performance of the blockchain. In the past few years, many consensus algorithms, such as proof of work (PoW), ripple, proof of stake (PoS), practical byzantine fault tolerance (PBFT), etc., have been designed to improve the performance of the blockchain. However, the high energy requirement, memory utilization, and processing time do not match with our actual desires. This paper proposes the consensus approach on the basis of PoW, where a single miner is selected for mining the task. The mining task is offloaded to the edge networking. The miner is selected on the basis of the digitization of the specifications of the respective machines. The proposed model makes the consensus approach more energy efficient, utilizes less memory, and less processing time. The improvement in energy consumption is approximately 21% and memory utilization is 24%. Efficiency in the block generation rate at the fixed time intervals of 20 min, 40 min, and 60 min was observed.
【Keywords】blockchain; consensus; energy; edge; offloading
【标题】具有边缘计算的物联网网络的区块链能源效率共识方法
【摘要】区块链技术在知识产权、金融、智慧农业等各个领域都受到广泛关注。区块链的安全特性已得到广泛应用，与人工智能、物联网（IoT）、软件定义网络（ SDN）等。区块链的共识机制是其核心，最终影响到区块链的性能。在过去的几年中，许多共识算法，如工作量证明（PoW）、瑞波、权益证明（PoS）、实用拜占庭容错（PBFT）等，都被设计用来提高区块链的性能。然而，高能量需求、内存利用率和处理时间与我们的实际需求并不匹配。本文提出了基于 PoW 的共识方法，即选择单个矿工来挖掘任务。挖掘任务被卸载到边缘网络。矿机是根据相应机器规格的数字化选择的。所提出的模型使共识方法更节能，使用更少的内存和更少的处理时间。能耗降低约 21%，内存利用率为 24%。在 20 分钟、40 分钟和 60 分钟的固定时间间隔观察到块生成率的效率。
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