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An Achievable Rate Region for the Three-User Interference Channel Based on Coset Codes

机译:基于陪集码的三用户干扰信道可达到的速率区域

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摘要

We consider the problem of communication over a three-user discrete memoryless interference channel (3-IC). The current known coding techniques for communicating over an arbitrary 3-IC are based on message splitting, superposition coding, and binning using independent and identically distributed (i.i.d.) random codebooks. In this paper, we propose a new ensemble of codes—partitioned coset codes (PCCs)—that possess an appropriate mix of empirical and algebraic closure properties. We develop coding techniques that exploit the algebraic closure property of PCC to enable interference alignment over general 3-IC. We analyze the performance of the proposed coding technique to derive an achievable rate region for the general discrete 3-IC. Additive and non-additive examples are identified for which the derived achievable rate region is the capacity, moreover, strictly larger than the current known largest achievable rate regions based on the i.i.d. random codebooks.
机译:我们考虑通过三用户离散无记忆干扰信道(3-IC)进行通信的问题。用于在任意3-IC上进行通信的当前已知的编码技术是基于消息拆分,叠加编码和使用独立且均布的(i.i.d.)随机码本的合并。在本文中,我们提出了一种新的代码集合-分区陪集代码(PCC)-它具有经验和代数闭包性质的适当组合。我们开发了利用PCC的代数闭包特性的编码技术,以实现对一般3-IC的干扰对准。我们分析了所提出的编码技术的性能,以得出通用离散3-IC的可实现速率区域。此外,还确定了其衍生的可实现速率区域是容量的加法和非加法示例,该能力严格大于基于i.d的当前已知的最大可实现速率区域。随机密码本。

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