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Monotonicity results for coherent MIMO Rician channels

机译:相干MIMO Rician信道的单调性结果

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摘要

The dependence of the Gaussian input information rate on the line-of-sight (LOS) matrix in multiple-input multiple-output (MIMO) coherent Rician fading channels is explored. It is proved that the outage probability and the mutual information induced by a multivariate circularly symmetric Gaussian input with any covariance matrix are monotonic in the LOS matrix D, or more precisely, monotonic in D/sup /spl dagger//D in the sense of the Loewner partial order. Conversely, it is also demonstrated that this ordering on the LOS matrices is a necessary condition for the uniform monotonicity over all input covariance matrices. This result is subsequently applied to prove the monotonicity of the isotropic Gaussian input information rate and channel capacity in the singular values of the LOS matrix. Extensions to multiple-access channels (MAC) are also provided.
机译:探索了高斯输入信息速率对多输入多输出(MIMO)相干Rician衰落信道中视线(LOS)矩阵的依赖性。证明了由具有任意协方差矩阵的多元圆形对称高斯输入引起的中断概率和互信息在LOS矩阵D中是单调的,或更准确地说,在D / sup / spl dagger // D的意义上是单调的洛纳偏序。相反,还证明了在LOS矩阵上的这种排序是所有输入协方差矩阵上均匀单调性的必要条件。该结果随后应用于证明各向同性高斯输入信息速率和信道容量在LOS矩阵的奇异值中的单调性。还提供了对多路访问通道(MAC)的扩展。

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