电讯技术2016，Vol.56Issue(6)：605-611,7.DOI:10.3969/j.issn.1001-893x.2016.06.002
可信的反馈声誉保护协作频谱感知软判决算法
A Trusted Cooperative Spectrum Sensing Soft-decision Scheme Using Feedback Reputation Protection
摘要
Abstract
The trust mechanism can suppress spectrum sensing data falsification( SSDF) attack caused by malicious users in cooperative sensing spectrum. However,the data fusion center receives the feedback in-formation indiscriminately at the end of cooperative spectrum sensing,which offers the chance for malicious users to launch“sanded” attack. By using the wrong feedback of malicious users about the status of prima-ry users,trust mechanism cannot get an accurate trust value. A novel trusted cooperative spectrum sensing soft-decision scheme using feedback reputation protection is proposed to avoid“sanded” attack. By consid-ering the individuality characteristic in the feedback,the idea of feedback reputation is introduced to quan-tify cognitive user’s trust value,which can be used to weight classic soft-decision sequential probability ra-tio test(SPRT) algorithm,and thus eliminating SSDF attack in the soft-decision data fusion. Simulations show that the novel scheme outperforms the conventional SPRT soft-decision schemes. The FSPRT scheme can reduce trust value error effectively,and maintain a better sensing performance.关键词
认知无线电/协作频谱感知/软判决/反馈声誉/信任机制Key words
cognitive radio/cooperative spectrum sensing/soft decision/feedback reputation/trust mechanism分类
信息技术与安全科学引用本文复制引用
韩定坤,冯景瑜,卢光跃,石敏..可信的反馈声誉保护协作频谱感知软判决算法[J].电讯技术,2016,56(6):605-611,7.基金项目
国家自然科学基金资助项目(61301091) （61301091）
陕西省自然科学基础研究计划项目(2014JQ8321) （2014JQ8321）
陕西省工业攻关计划项目(2015GY013) （2015GY013）
陕西省教育厅专项科研计划项目(15JK1671) （15JK1671）
中国科学院信息安全国家重点实验室开放课题(2015-MS-14)@@@@The National Natural Science Foundation of China ( No.61301091) （2015-MS-14）
The Natural Science Foundation of Shaanxi Province (2014JQ8321) （2014JQ8321）
The Industrial Research Project of Shaanxi Province(2015GY013) （2015GY013）
The Special Scientific Research Program of Shaanxi Education Department(15JK1671) （15JK1671）
The Open Subject of State Key Laboratory of Information Security of Chinese Academy of Sciences(2015-MS-14) （2015-MS-14）
