An Outer Bound for the Gaussian Interference Channel with a Relay

被引：0
|
作者：
Maric, Ivana [1 ]
Dabora, Ron [2 ]
Goldsmith, Andrea J. [1 ]
机构：
[1] Stanford Univ, Stanford, CA 94305 USA
[2] Ben Gurion Univ Negev, Beer Sheva, Israel
来源：
2009 IEEE INFORMATION THEORY WORKSHOP (ITW 2009) | 2009年
关键词：
CAPACITY;
D O I：
暂无
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
A novel sum-rate outer bound for the Gaussian interference channel with a relay is presented. The outer bound is obtained by adapting the genie-aided approach developed for interference channels in [1]. The cut-set bound for this channel is also derived and is shown to be much looser than the new bound. The new bound is also compared to an achievable rate region we introduced in previous work. We show that the inner and outer bounds are close in the regime of strong interference where receivers can decode both messages. The capacity region in strong interference for the discrete memoryless degraded channel is also presented.
引用
收藏
页码：569 / 573
页数：5
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