摘要
为了解决区块链各个领域之间相互孤立,无法实现多业务融合的问题,基于专为物联网设计的IOTA区块链设计了一个融合多领域、面向大规模分布式物联网的全新区块链架构。将区块链分为不同的应用链和分布式身份认证链(Decentralized Identifier Chain,DIDC),为不同的应用链之间的交互设计了新的通信协议,实现了区块链的多业务融合。采用随机演算理论计算一跳传输的时延,推导出了共识时间、吞吐量、安全性能,以及不同应用链之间交互效率等闭合表达式,完成了区块链的性能分析。提出了以定向传播的方法代替IOTA谣言算法,降低了通信开销。仿真和分析结果表明,所提架构在共识时间和安全性能相差不大的情况下,吞吐量提高为原来的4倍,通信开销降为原来的15%。
To solve the problem that applications of blockchain in various fields are isolated from each other and cannot achieve the integration of multiple services,a new blockchain architecture that integrates multiple applications for large-scale distributed Internet of Things based on IOTA,which is specially designed for Internet of Things,is proposed.The blockchain is divided into different application chains and a Decentralized Identifier Chain(DIDC),and a new communication protocol is designed for the interaction between different application chains,which realizes the multi-service integration of blockchain.The delay of one-hop transmission is calculated by using stochastic calculation theory,and the closed expressions such as consensus time,throughput,security performance,and interaction efficiency between different application chains are derived to complete the performance analysis of blockchain.To reduce network overhead,the gossip algorithm of IOTA is replaced by the method of directed propagation.Simulation and analysis results show that the proposed architecture can increase the throughput by 400%and reduce the communication overhead by 15%under the condition that the consensus time and security performance are not significantly different from those of the traditional IOTA.
作者
张秀贤
朱晓荣
ZHANG Xiuxian;ZHU Xiaorong(College of Electronic Engineering,Nanjing Xiaozhuang University,Nanjing 211171,China;School of Communications and Information Engineering,Nanjing University of Posts and Telecommunications,Nanjing 210003,China)
出处
《无线电工程》
2025年第3期649-661,共13页
Radio Engineering
基金
国家自然科学基金(92067101)
江苏省重点研发计划(BE2021013-3)
江苏省自然科学基金(BK20211014)
未来网络科研基金项目(FNSRFP-2021-YB-28)。
关键词
区块链
随机演算
吞吐量
共识时间
分布式身份认证
blockchain
stochastic calculation theory
throughput
consensus time
decentralized identifier
作者简介
张秀贤,女,(1982-),博士,讲师。主要研究方向:无线网络、无线接入技术、物联网、区块链和人工智能等;通信作者:朱晓荣,女,(1978-),博士,教授,博士生导师。主要研究方向:无线网络、无线接入技术、物联网、区块链和人工智能等。
