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arXiv cs/0610115cs.ITmath.IT
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高斯干扰信道的一个可扩展速率域

An Achievable Rate Region for the Gaussian Interference Channel

Xiaohu Shang, Biao Chen

摘要:

利用Sato的修正频分复用思想和Han和Kobayashi的速率域的特殊情况(用$\Gmat^\prime$表示),推导出高斯干扰信道的可达速率域.我们表明,新的内界包括$\Gmat^\prime$,Sason的速率区域$\Dmat$,以及通过TDM/FDM可实现的区域,作为其子集。这种改进的内界优于$\Gmat^\prime$的优点是由于其利用实际线路上的整个发射功率范围而不违反功率约束的固有能力而产生的。我们还提供了分析,以检查新的可实现的区域严格扩展$\Gmat^\prime$的条件。

英文摘要:

An achievable rate region for the Gaussian interference channel is derived using Sato's modified frequency division multiplexing idea and a special case of Han and Kobayashi's rate region (denoted by $\Gmat^\prime$). We show that the new inner bound includes $\Gmat^\prime$, Sason's rate region $\Dmat$, as well as the achievable region via TDM/FDM, as its subsets. The advantage of this improved inner bound over $\Gmat^\prime$ arises due to its inherent ability to utilize the whole transmit power range on the real line without violating the power constraint. We also provide analysis to examine the conditions for the new achievable region to strictly extend $\Gmat^\prime$.

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