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arXiv 0809.3159cs.ITmath.IT
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高斯干扰信道的SINR区域的几何描述:两个和三个用户情况

A Geometrical Description of the SINR Region of the Gaussian Interference Channel: the two and three-user case

Abdoulaye Bagayoko, Patrick Tortelier

摘要:

本文讨论的问题,计算可达到的速率为两个(和三个)用户共享一个相同的频带没有协调,从而相互干扰。因此,它主要涉及认知无线电研究领域,因为我们寻找可实现的频谱使用效率的提高。它还与高斯干扰信道(GIC)的容量区域的长期存在的问题密切相关,因为没有用户协调的假设(以及所有信号和干扰都是高斯的基本假设)。我们给出了几何描述的SINR区域的两个用户和三个用户的信道。这种几何方法提供了一个封闭形式的表达的容量区域的两个用户的干扰信道和一个有见地的已知的最佳功率分配方案。

英文摘要:

This paper addresses the problem of computing the achievable rates for two (and three) users sharing a same frequency band without coordination and thus interfering with each other. It is thus primarily related to the field of cognitive radio studies as we look for the achievable increase in the spectrum use efficiency. It is also strongly related to the long standing problem of the capacity region of a Gaussian interference channel (GIC) because of the assumption of no user coordination (and the underlying assumption that all signals and interferences are Gaussian). We give a geometrical description of the SINR region for the two-user and three-user channels. This geometric approach provides a closed-form expression of the capacity region of the two-user interference channel and an insightful of known optimal power allocation scheme.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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