Bandwidth and Power Allocation for Gaussian Orthogonal Untrusted Relay Channel

摘要：

　　The Gaussian orthogonal untrusted relay channel is investigated in this paper.We assume that there is an eavesdropper at the relay node which can access everything that the relay node knows.The source node transmits signals to the relay node and the destination node in channel 1,the relay node transmits signals to destination node in channel 2,channel 1 and channel 2 are orthogonal.The achievable secrecy rate is derived firstly.Under the limit of the total channel resource,the maximum achievable secrecy rate is obtained through optimizing the resource allocation.Of the Gaussian orthogonal untrusted relay channel,there exists a unique optimum bandwidth or power to achieve the maximum secrecy rate and a higher secrecy rate can be achieved using this optimal resource allocation strategy than the maximum resource allocation strategy.

关键词： wiretap channel secrecy rate resource allocation untrusted relay

作者: Deng Zhixiang Yu Zhangju Wang Baoyun

作者单位: College of Telecommunications & Information Engineering, Nanjing Univ. of Posts and Telecommunicatio College of Telecommunications & Information Engineering, Nanjing Univ. of Posts and Telecommunicatio College of Telecommunications & Information Engineering, Nanjing Univ. of Posts and Telecommunicatio

会议类型: 国际会议

会议名称: 2012 IEEE 11th International Conference on Signal Processing (第11届IEEE信号处理国际会议)

会议地点: 北京

会议语种:英文

页码: 1315-1318

在线出版日期: 2012-10-21（万方平台首次上网日期，不代表论文的发表时间）