Asymptotic Analysis of Different Multibranch Diversity Receivers With Arbitrarily Correlated Rician Channels
Asymptotic Analysis of Different Multibranch Diversity Receivers With Arbitrarily Correlated Rician Channels
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DOI：
10.1109/twc.2014.2328993
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发表时间：
2014-06
影响因子：
10.4
通讯作者：
Xuegui Song;Julian Cheng;N. Beaulieu
中科院分区：
文献类型：
--
作者：
Xuegui Song;Julian Cheng;N. Beaulieu
本文研究了在任意相关的莱斯信道上，采用流行而重要的合并技术的多分支分集接收系统的渐近性能。基于任意相关的多变量Rician随机变量的联合概率密度函数的积分表示，导出了多分支接收机分集接收的渐近误码率和渐近中断概率的封闭表达式.研究的重要分集方案有最大比合并、等增益合并、选择合并、混合最大比合并和混合等增益合并。数值结果表明，这些解析解可以提供准确的估计错误率和中断概率在大信噪比制度。分析提供了一些重要的理论和实际结果有关的性能特性的多分支分集接收机工作在任意相关莱斯衰落信道。
The asymptotic performances of multibranch diversity reception systems employing the popular and important combining techniques over arbitrarily correlated Rician channels are studied. Based on an integral representation of the joint probability density function of multivariate Rician random variables with arbitrary correlations, closed-form expressions for asymptotic error rate and asymptotic outage probability are derived for multibranch receiver diversity receptions. The important diversity schemes studied are maximal ratio combining, equal gain combining, selection combining, and hybrid maximal ratio combining as well as hybrid equal gain combining. Numerical results indicate that these analytical solutions can provide accurate estimation of error rate and outage probability in large-signal-to-noise-ratio regimes. The analysis provides some important theoretical and practical results concerning the performance characteristics of multibranch diversity receivers operating on arbitrarily correlated Rician fading channels.