Sustainability in Blockchain: A Systematic Literature Review on Scalability and Power Consumption Issues

【Author】 Alshahrani, Hani; Islam, Noman; Syed, Darakhshan; Sulaiman, Adel; Al Reshan, Mana Saleh; Rajab, Khairan; Shaikh, Asadullah; Shuja-Uddin, Jaweed; Soomro, Aadar

【Source】ENERGIES

【影响因子】3.252

【Abstract】Blockchain is a peer-to-peer trustless network that keeps records of digital assets without any central authority. With the passage of time, the sustainability issue of blockchain is rising. This paper discusses two major sustainability issues of blockchain: power consumption and scalability. It discusses the challenge of power consumption by analyzing various approaches to estimating power consumption in the literature. A case study of bitcoin is presented for this purpose. The study presents a review of the growing energy consumption of bitcoin along with a solution for immersion cooling in blockchain mining. The second challenge addressed in this research is scalability. With the increase in network size, scalability issues are also increasing as the number of transactions per second is decreasing. In other words, blockchain is observing low throughput with its increase in size. The paper discusses research studies and techniques proposed in the literature. The paper then investigates how to scale blockchain for better performance.

【Keywords】blockchain; bitcoin; scalability; power consumption; immersion cooling

【发表时间】2023 FEB

【收录时间】2023-03-16

【文献类型】综述

【主题类别】

区块链技术-核心技术-扩展方案