标题：SECRECY RATE ANALYSIS FOR JAMMING ASSISTED RELAY COMMUNICATIONS SYSTEMS
作者：Qiao, Jingping; Zhang, Haixia; Wu, Dalei; Yuan, Dongfeng
作者机构：[Qiao, Jingping; Zhang, Haixia; Yuan, Dongfeng] Shandong Univ, Sch Info Sci & Engn, Jinan, Shandong, Peoples R China.; [Wu, Dalei] MIT, Mechatron Re 更多
会议名称：40th IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP)
会议日期：APR 19-24, 2015
来源：2015 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING (ICASSP)
关键词：Physical layer security; secrecy rate; full-duplex; jamming
摘要：The secrecy rate optimization of wireless communication systems with full-duplex (FD) relays and jamming signals is investigated in this work. Cooperated with FD relays, a novel secrecy transmission mechanism is proposed targeting at creating interference at eavesdroppers by adopting jamming signals. In the proposed mechanism, relays work in FD mode to receive information signals and forward them together with extra jamming signals. The global channel state information (CSI) is assumed available at all transmit nodes. Based on the proposed scheme, the secrecy rate of relay communication system is analyzed. Simulation results are also included to support the theoretical analysis. Results show that the proposed scheme can obviously enhance the secrecy rate of relay communication systems.