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任意分集方式多输人多输出无线通信系统的统计信道建模
Statistical modeling arbitrary diversitiy multi-input multi-output systems*
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摘要: 针对极化分集多输入多输出系统的传统统计模型存在着对不同极化方向上的功率变化设置不合理的问题，提出一种功率矩阵对其进行纠正；对采用不同分集方式的多输入多输出系统信道建模的原理进行分析，提出对功率矩阵和相关矩阵进行复合计算的方法，建立了一种适用于任意分集方式多输入多输出系统的统计信道模型，该模型能够确切反映出同时受到距离分集和极化分集影响的多输入多输出系统之统计特征．Abstract: A new form of power matrix is proposed to correct the unreasonable points in traditional statistical multiinput multioutput (MIMO) channel model which mishandles different power variations in different polarization direction. Based on the analysis of modeling theory of different diversities, a composite calculation method of power matrix and covariance matrix is proposed to build a generalpurpose statistical channel model which exactly represents statistical characteristics under the effects of spacediversity and polarizationdiversity, and thus can be applied to arbitrary diversity MIMO systems.
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