通信学报2012，Vol.33Issue(1)：128-135,8.
最优认知用户配对与协作感知算法研究
Research on cognitive user pairing and cooperative sensing
摘要
Abstract
Aim at the shortages of the cooperative algorithm in sensing and time slot spent, an optimal cognitive users pairing and cooperative sensing algorithm was proposed. To achieve the best sensing performance, the pairing criterion was adopted where the one with the best receive SNR was used for the sense user and the one with the second-best receive SNR was used for the relay. According to optimizing cooperation threshold, non-cooperative or cooperative mode was selected, which made time slot spent much lower but sensing ability slight decreasing. Meanwhile, a lower bound of the detection probability and the time slot spent were derived in Rayleigh flat fading channels. Numerical results show the proposed algorithm has higher detection probability and lower time slot spent than the existing one.关键词
频谱感知/协作分集/检测概率/时隙消耗Key words
spectrum sensing/ cooperative diversity/ detection probability/ time slot spending分类
信息技术与安全科学引用本文复制引用
包志华,张士兵,张晓格,邱恭安..最优认知用户配对与协作感知算法研究[J].通信学报,2012,33(1):128-135,8.基金项目
国家自然科学基金资助项目(60872002,61071086) （60872002,61071086）
南通市应用研究计划基金资助项目(BK2011064) （BK2011064）
江苏省高校自然科学基金资助项目(11KJB510021,11KJB510020) （11KJB510021,11KJB510020）
