可加性各向同性α-稳定噪声通道的可实现速率

Malcolm Egan, Mauro L. de Freitas, L. Clavier, A. Goupil, G. Peters, Nourddine Azzaoui
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引用次数: 7

摘要

脉冲噪声出现在许多通信系统中——从无线到分子——并且通常通过α-稳定分布来建模。在本文中,我们研究了复杂各向同性α-稳定噪声信道的容量特性,这些信道可能出现在无线蜂窝通信的背景下,目前还没有得到很好的理解。特别地,我们导出了一个可处理的下界,并证明了最优输入分布的存在唯一性。然后,我们将下界应用于研究平行α稳定噪声信道的情况,并推导出一个下界,该下界可以深入了解尾指数α对可实现速率的影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Achievable rates for additive isotropic α-stable noise channels
Impulsive noise arises in many communication systems - ranging from wireless to molecular - and is often modeled via the α-stable distribution. In this paper, we investigate properties of the capacity of complex isotropic α-stable noise channels, which can arise in the context of wireless cellular communications and are not well understood at present. In particular, we derive a tractable lower bound, as well as prove existence and uniqueness of the optimal input distribution. We then apply our lower bound to study the case of parallel α-stable noise channels and derive a bound that provides insight into the effect of the tail index α on the achievable rate.
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