An outer bound for the Gaussian interference channel with a relay
An outer bound for the Gaussian interference channel with a relay
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具有中继的高斯干扰信道的外界
DOI：
10.1109/itw.2009.5351371
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
A. Goldsmith
中科院分区：
文献类型：
--
作者：
I. Marić;R. Dabora;A. Goldsmith
提出了带有继电器的高斯干扰通道的新型总和外部结合。外部结合是通过适应为干扰通道开发的精灵辅助方法而获得的。该通道的切割式结合也被得出，并且显示出比新结合的宽松得多。还将新的界限与我们在以前的工作中引入的可实现的速率区域进行了比较。我们表明，内部和外部边界在强大干扰方案中接近接收器可以解码这两个消息。还提出了对离散无内存降解通道的强大干扰的容量区域。
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. 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.