高斯X信道在噪声干扰下的和容量  

Sum capacity of Gaussian X channels with noisy interference

作　　者：李静[1] 葛建华[1] 

机构地区：[1]西安电子科技大学综合业务网理论及关键技术国家重点实验室,陕西西安710071

出　　处：《西安电子科技大学学报》2016年第1期71-74,150,共5页Journal of Xidian University

基　　金：国家重点基础研究发展计划资助项目(2012CB316100);国家高技术研究发展计划("863"计划)资助项目(2014AA01A704);"111"计划资助项目(B08038);中国国家留学基金管理委员会(CSC)资助项目

摘　　要：通过分析高斯X信道的和容量,得到了该信道处于噪声干扰下的充分条件.将辅助向量和辅助集合作为边信息提供给接收端,得到了一个和速率上界.在所提出的噪声干扰条件下,该和速率上界可通过将X信道退化成潜在的干扰信道,并把干扰当作噪声处理的方法达到,从而得到了该信道在噪声干扰下的和容量.If the sum capacity of a channel can be achieved by treating interference as noise,we say that this channel is under noisy interference.By analyzing the sum capacity of Gaussian X channels,sufficient conditions for such channels under noisy interference are proposed.Providing vector genies and auxiliary sets as side information to the receivers,a sum-rate upper bound is obtained.Under the noisy interference sufficient conditions,this sum-rate upper bound can be achieved by operating the original channel as the underlying Gaussian interference channel and treating interference as noise.Therefore,the sum capacity of the Gaussian X channel is determined for noisy interference.

关 键 词：X信道 和容量 噪声干扰 

分 类 号：TN911.02[电子电信—通信与信息系统]