A Blockchain Enhanced Dynamic Spectrum Sharing Model Based on Proof-of-Strategy
A Blockchain Enhanced Dynamic Spectrum Sharing Model Based on Proof-of-Strategy
复制标题
基于策略证明的区块链增强动态频谱共享模型
DOI：
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发表时间：
2020
期刊：
影响因子：
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通讯作者：
Haoye Chai
中科院分区：
文献类型：
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作者：
Hanwen Zhang;S. Leng;Haoye Chai
随着6 G移动的网络对频谱效率要求的提高，联邦通信委员会（FCC）提出的公民宽带无线业务（CBRS）被认为是潜在的动态频谱共享解决方案。传统的CBRS存在较高的管理费用和隐私风险。此外，区块链中的传统共识方法消耗过多的计算能力或缺乏有根据的共识标准。在本文中，我们提出了一种分布式CBRS-Blockchain模型，该模型具有专门的共识方法，能够减少动态访问系统的管理费用。基于环签名技术，提出了一种隐私保护方法。在此基础上，结合频谱分配过程，设计了一种新的策略证明方法。该方法不仅提供了良好的共识机制，而且还防止了频谱分配系统的单点故障事件。仿真结果表明，该方法对法律的用户和恶意用户的隐私保护效果不同，同时也提高了系统的效用。
With the increasing requirement of spectral efficiency in 6G mobile networks, the Citizens Broadband Radio Service (CBRS) proposed by the Federal Communications Commission (FCC) is considered as the potential dynamic spectrum sharing solution. Traditional CBRS suffers high administrative expense and privacy risk. In addition, conventional consensus methods in blockchain consume excessive computing power or lack well-founded consensus standard. In this paper, we propose a distributed CBRS-Blockchain model with a specialized consensus method, which is able to reduce administrative expense of dynamic access system. Based on the ring signature techniques, a privacy protection method is proposed. Furthermore, we design a new consensus method named as proof-of-strategy, which combines with the process of spectrum allocation. The proposed method not only provides well-founded consensus mechanism, but also prevents spectrum allocation system from the event of single point failure. Simulation results show the divergent privacy protection for legal users and malicious users, as well as the system utility under the proposed consensus method.