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arXiv 0905.1386cs.ITmath.IT
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选择性衰落多址MIMO信道:分集复用折衷和主要中断事件区域

Selective-Fading Multiple-Access MIMO Channels: Diversity-Multiplexing Tradeoff and Dominant Outage Event Regions

Pedro Coronel, Markus Gärtner, Helmut Bölcskei

摘要:

我们建立了最佳的分集复用(DM)权衡相干选择性衰落多址MIMO信道,并提供相应的代码设计准则。作为一个副产品,在概念层面上,我们发现一个有趣的DM权衡框架之间的关系和概念的主要错误事件区域,首先介绍了在AWGN的情况下,由Gallager,IEEE trans.IT,1985年。这种关系使我们能够准确地描述在MIMO衰落多址信道的错误机制。特别是,我们发现,对于一个给定的速率元组,最大可实现的分集阶数是由一个单一的中断事件,占主导地位的总错误概率指数SNR。最后,我们研究了Badr和Belfiore在国际苏黎世通信研讨会上提出的分布式空时码构造。,2008年,使用本文推导的规范设计标准。

英文摘要:

We establish the optimal diversity-multiplexing (DM) tradeoff for coherent selective-fading multiple-access MIMO channels and provide corresponding code design criteria. As a byproduct, on the conceptual level, we find an interesting relation between the DM tradeoff framework and the notion of dominant error event regions, first introduced in the AWGN case by Gallager, IEEE Trans. IT, 1985. This relation allows us to accurately characterize the error mechanisms in MIMO fading multiple-access channels. In particular, we find that, for a given rate tuple, the maximum achievable diversity order is determined by a single outage event that dominates the total error probability exponentially in SNR. Finally, we examine the distributed space-time code construction proposed by Badr and Belfiore, Int. Zurich Seminar on Commun., 2008, using the code design criteria derived in this paper.

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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