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首页> 外文期刊>IEEE Transactions on Antennas and Propagation >The Performance of the Maximum Ratio Combining Method in Correlated Rician-Fading Channels for Antenna-Diversity Signal Combining
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The Performance of the Maximum Ratio Combining Method in Correlated Rician-Fading Channels for Antenna-Diversity Signal Combining

机译：天线分集信号合并相关Rician-Fading信道中最大比率合并方法的性能

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摘要

The performance of the maximum ratio combining method for the combining of antenna-diversity signals in correlated Rician-fading channels is rigorously studied. The distribution function of the normalized signal-to-noise ratio (SNR) is expanded in terms of a power series and calculated numerically. This power series can easily take into account the signal correlations and antenna gains and can be applied to any number of receiving antennas. An application of the method to dual-antenna diversity systems produces useful distribution curves for the normalized SNR which can be used to find the diversity gain. It is revealed that signal correlation in Rician-fading channels helps to increase the diversity gain rather than to decrease it as in the Rayleigh fading channels. It is also shown that with a relative strong direct signal component, the diversity gain can be much higher than that without a direct signal component.
机译：严格研究了在相关的Rician衰落信道中合并天线分集信号的最大比率合并方法的性能。归一化的信噪比（SNR）的分布函数根据幂级数进行扩展，并进行数值计算。该功率系列可以轻松考虑信号相关性和天线增益，并且可以应用于任何数量的接收天线。该方法在双天线分集系统上的应用为归一化SNR生成了有用的分布曲线，可用于找到分集增益。揭示了在Rician衰落信道中的信号相关有助于增加分集增益，而不是像在瑞利衰落信道中那样降低分集增益。还显示出，在具有相对强的直接信号分量的情况下，分集增益可以比没有直接信号分量的分集增益高得多。

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