Selection-Combining Diversity Performance of Actual Multielement Antenna Systems Using the Covariance Matrix Method
Selection-Combining Diversity Performance of Actual Multielement Antenna Systems Using the Covariance Matrix Method
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DOI：
10.1109/lawp.2010.2059691
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发表时间：
2010-01-01
影响因子：
4.2
通讯作者：
Papamichael, Vasilis Christos
中科院分区：
文献类型：
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作者：
Papamichael, Vasilis Christos
到目前为止，协方差矩阵法用于评估选择合并(SC)分集性能的应用仅限于实际天线系统包含两个单元的情况。本文将该方法推广应用于多单元天线(MEA)系统。使用有效分集增益(EDG)来评估性能改善。通常，EDG是根据特定中断概率下的信噪比(SNR)增强来衡量的。然而，EDG也可以根据实现特定平均误比特率(BER)的SNR降低来测量。对于包括三个印刷倒F天线(IFA)的紧凑型MEA系统，给出了这两种EDG表达式，并对其进行了评估。
Until now, the application of the covariance matrix method for evaluating the selection-combining (SC) diversity performance is restricted to the case of actual antenna systems comprising two elements. In this letter, the method is extended in order to apply to multielement antenna ( MEA) systems. The performance improvement is evaluated using the effective diversity gain (EDG). Usually, EDG is measured in terms of the signal-to-noise ratio (SNR) enhancement at a specific outage probability. EDG, however, can also be measured in terms of the SNR reduction for achieving a specific average bit error rate (BER). Both EDG expressions are presented and evaluated for a compact MEA system comprising three printed inverted-F antennas (IFAs).