通信学报2023，Vol.44Issue(12)：1-14,14.DOI:10.11959/j.issn.1000-436x.2023238
基于审计博弈的安全协作频谱感知方案
Secure and collaborative spectrum sensing scheme based on audit game
摘要
Abstract
To defend against poisoning attacks and free-riding attacks conducted by malicious sensing terminals in crowd sensing-based collaborative spectrum sensing(CCSS),a novel audit game-based defense scheme was proposed,which combined the pre-deterrence and post-punishment mechanisms.Firstly,considering the audit budget constraint,a mixed-strategy audit game model under incomplete information was designed,which set a penalty strategy to deter mali-cious collaborators before spectrum sensing,and audited and punished them after the fusion of sensing data.Then,a lightweight audit chain model with on-chain and off-chain collaboration was designed,in which audit evidence was stored in an off-chain data warehouse and its metadata was publicly published on the blockchain.Furthermore,a distrib-uted and intelligent audit algorithm based on reinforcement learning was devised to adaptively seek the approximate mix-strategy equilibrium of the audit game.Simulation results demonstrate that the proposed scheme can quickly obtain the stable and approximately optimal audit strategies and actively suppress the poisoning and free-riding behaviors of malicious collaborators,in comparison with conventional schemes.关键词
协作频谱感知/审计博弈/安全/区块链/强化学习Key words
collaborative spectrum sensing/audit game/security/blockchain/reinforcement learning分类
信息技术与安全科学引用本文复制引用
王云涛,苏洲,许其超,刘怡良,彭海霞,栾浩..基于审计博弈的安全协作频谱感知方案[J].通信学报,2023,44(12):1-14,14.基金项目
国家自然科学基金资助项目(No.62302387,No.62273223,No.U23A20276,No.62101429) （No.62302387,No.62273223,No.U23A20276,No.62101429）
博士后创新人才支持计划基金资助项目(No.BX20230282)The National Natural Science Foundation of China(No.62302387,No.62273223,No.U23A20276,No.62101429),Postdoctoral Innovative Talent Support Program of China(No.BX20230282) （No.BX20230282）
