面向物联网多域协同的IOTA区块链优化方案  

An Optimizing Scheme on Multi-domain Collaborative IOTA Blockchain Technology for the Internet of Things

作　　者：刘开放 付绍静[1] 苏金树[1] 张富成 LIU Kaifang;FU Shaojing;SU Jinshu;ZHANG Fucheng(College of Computer Science,National University of Defence Technology,Changsha 410073,China)

机构地区：[1]国防科技大学计算机学院,长沙410073

出　　处：《信息网络安全》2020年第10期41-48,共8页Netinfo Security

基　　金：国家自然科学基金[61872372]。

摘　　要：IOTA作为面向物联网而生的区块链3.0技术,具有无交易手续费、高吞吐量、支持交易离线共识、隐私性强等天然优势。然而,多域场景下的物联网会因为多个异构的子网在一定时间相互无法互联互通,进而导致网络资源相互隔离。为进一步解决多域场景下IOTA网络的可扩展性和存储开销问题,以使用DAG结构的IOTA网络为研究对象,文章提出面向物联网多域协同的IOTA区块链优化方案。该方案在多域场景下,在统一的IOTA网络环境中划分出多个区域网络,利用拥有IOTA网络的子网划分视图的特殊节点进行各个子网络间的通信。测试结果表明,该方案可以极大提高IOTA网络的可扩展性,节约节点的存储开销,对IOTA网络适应物联网多域场景有着重要的意义。As a blockchain 3.0 technology for the Internet of Things,IOTA has many advantages such as no transaction fee,high throughput,support for offline consensus of transactions,and strong privacy.However,the Internet of Things in the multi-domain scenario may cause network resources to be isolated when multiple heterogeneous sub-nets cannot connect with each other in a certain period of time.In order to solve the problems of the scalability and storage consumption of IOTA network in the multi-domain scenario,taking the IOTA network using DAG structure as the research object,this article proposes an optimizing scheme on multidomain collaborative IOTA blockchain technology for the Internet of Things.In the multi-domain scenario,multiple regional networks are divided in the unified IOTA network environment.This scheme uses special nodes which have sub-net division views of the whole IOTA network to communication among sub-nets.The experimental results show that the scheme can improve the scalability of the IOTA network,save storage consumption and be of great significance for the IOTA network to adapt the multi-domain scenario of the Internet of Things.

关 键 词：区块链3.0 IOTA 区域分片 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]