通信学报2023，Vol.44Issue(12)：28-38,11.DOI:10.11959/j.issn.1000-436x.2023218
基于博弈论的空时频谱共享:动态接入与惩罚策略
Space-time spectrum sharing based on game theory:dynamic access and penalty strategy
摘要
Abstract
To tackle the challenge of inefficient utilization of spatiotemporal spectrum resources in heterogeneous net-works,a reliable spectrum sharing strategy based on game theory was proposed for scenarios where multiple secondary users dynamically access through sensing spatiotemporal spectrum opportunities.Firstly,secondary users sensed the ac-tivity state of primary users through channel sampling and subsequently seek suitable spatiotemporal spectrum opportuni-ties.Each secondary user aimed to access more spectrum resources while preventing quality degradation between primary users.Consequently,a negotiation of individual utilities between secondary and primary users was needed,in order to reach a mixed Nash equilibrium.When the secondary user's transmission power was abnormal,its behavior would be re-garded as a violation.Then,a backoff time compensation algorithm was presented to penalize the secondary users,ac-cording to the number of violations and active nodes in the network.Finally,simulation results validate the effectiveness of the spatiotemporal spectrum opportunities sharing strategy with the penalty mechanism.关键词
认知无线电网络/空时频谱机会/混合纳什均衡/退避时间补偿Key words
cognitive radio network/spatiotemporal spectrum opportunity/mixed Nash equilibrium/backoff time com-pensation分类
信息技术与安全科学引用本文复制引用
牛阳阳,尉志青,冯志勇..基于博弈论的空时频谱共享:动态接入与惩罚策略[J].通信学报,2023,44(12):28-38,11.基金项目
国家自然科学基金资助项目(No.62271081) （No.62271081）
国家重点研发计划基金资助项目(No.2020YFA0711302)The National Natural Science Foundation of China(No.62271081),The National Key Research and Develop-ment Program of China(No.2020YFA0711302) （No.2020YFA0711302）
