Optimal joint cooperative beamforming and artificial noise design for secrecy rate maximization in AF relay networks
Refereed conference paper presented and published in conference proceedings

香港中文大學研究人員
替代計量分析
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其它資訊
摘要This paper studies cooperative secure transmission in wireless relay networks, where a source sends a confidential message to a legitimate destination through a set of amplify-and-forward (AF) relays in the presence of multiple eavesdroppers. To prevent the eavesdroppers from retrieving the message, we assume that the relays employ a joint cooperative beamforming (CB) and artificial noise (AN) strategy. Under both the total and individual relay power constraints, we propose an optimal joint CB-AN design based on secrecy rate maximization (SRM). We treat the SRM problem by a combination of two-level optimization and semidefinite relaxation (SDR). For the latter, we prove that SDR always has a rank-one solution for the SRM problem - which identifies that SDR is optimal. Simulation results are presented to show the efficacy of the proposed joint CB-AN design. © 2013 IEEE.
著者Yang Y., Li Q., Ma W.-K., Ge J., Lin M.
會議名稱2013 IEEE 14th Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2013
會議開始日16.06.2013
會議完結日19.06.2013
會議地點Darmstadt
會議國家/地區德國
詳細描述organized by IEEE,
出版年份2013
月份10
日期22
頁次360 - 364
國際標準書號9781467355773
語言英式英語
關鍵詞amplify-and-forward relaying, artificial noise, Cooperative beamforming, secrecy rate maximization

上次更新時間 2021-27-02 於 23:52