A general analytical approach to multi-branch selection combining over various spatially correlated fading channels
A general analytical approach to multi-branch selection combining over various spatially correlated fading channels
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DOI：
10.1109/tcomm.2002.800804
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发表时间：
2002-11
期刊：
影响因子：
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通讯作者：
Keith Q. T. Zhang;H. Lu
中科院分区：
文献类型：
--
作者：
Keith Q. T. Zhang;H. Lu
在无线通信中的潜在应用的驱动下，在过去的十年中，人们对各种选择性合并（SC）方案的研究进行了大量的研究。然而，不管它的实际重要性，性能分析的多分支SC在空间相关衰落信道是没有在文献中，除了最简单的情况下，双分集。主要的困难在于，供应链有其根源的理论顺序统计量，但系统的方法已经开发主要是从一个独立的人口获得的顺序统计量。在本文中，我们制定了一个非常一般的框架，从而得出一个一般的解决方案的问题。阐述了新方案在不同调制方式和工作环境下的SC中的应用。要解决的衰落环境包括相关Nakagami，瑞利，和Rician信道。数值例子来说明使用的理论。
Driven by the potential application to wireless communications, intensive research efforts have been made on the study of various selective combining (SC) schemes in the past decade. Nevertheless, regardless of its practical importance, performance analysis of multi-branch SC over spatially correlated fading channels is not available in literature except for the simplest case of dual diversity. The major difficulty lies in the fact that SC has its root in the theory of order statistics, and yet systematic methodology has been developed mainly for order statistics obtained from an independent population. In this paper, we formulate the problem in a very general framework, whereby a general solution is derived. The application of the new solution to SC with different modulation schemes and operational environments is elaborated. The fading environments to be addressed include correlated Nakagami, Rayleigh, and Rician channels. Numerical examples are also presented to illustrate the use of the theory.