通信学报Issue(3)：168-173,6.DOI:10.3969/j.issn.1000-436x.2014.03.019
基于DS证据理论的协作频谱感知改进方法
Improved cooperative spectrum sensing scheme based on dempster-shafer theory in cognitive radio network
摘要
Abstract
An improved cooperative spectrum sensing scheme based on dempster-shafer evidence theory in cognitive ra-dio networks was proposed. In the local sensing period, the projection approximation algorithm was introduced to reduce bandwidth for cooperation. In the fusion period, credibility was calculated by the distance between evidence vectors of different secondary users and adopted as the weights to combine different local sensing data. The new scheme reduces channel bandwidth and simulation results show that the new scheme improves the performance under the condition of high level conflict.关键词
协作频谱感知/数据融合/DS证据理论/证据高度冲突Key words
cooperative spectrum sensing/data fusion/dempster-shafer theory of evidence/high level conflict分类
信息技术与安全科学引用本文复制引用
于美婷,赵林靖,李钊..基于DS证据理论的协作频谱感知改进方法[J].通信学报,2014,(3):168-173,6.基金项目
国家自然科学基金资助项目(61231008,60902032)；国家科技重大专项基金资助项目(2012ZX03003005-005)；高校科研基本业务费基金资助项目(K50511010008)；长江学者和创新团队发展计划基金资助项目(IRT0852)；高等学校创新引智计划基金资助项目(B08038) @@@@ The National Natural Science Foundation of China(61231008,60902032) （61231008,60902032）
National S&T Major Project (2012ZX03003005-005) （2012ZX03003005-005）
Fundamental Research Funds for the Central Universities(K50511010008) （K50511010008）
Program for Changjiang Scholars and Innovative Research Team in University(IRT0852) （IRT0852）
The 111 Project(B08038) （B08038）
