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首页> 外文期刊>IEEE Journal on Selected Areas in Communications >On MMSE real-time antenna array processing using fourth-order statistics in the US cellular TDMA system
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On MMSE real-time antenna array processing using fourth-order statistics in the US cellular TDMA system

机译:在美国蜂窝TDMA系统中使用四阶统计信息进行MMSE实时天线阵列处理

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摘要

The antenna array processing problem in the reverse link of the current US digital cellular communication system is studied and higher-than-second-order-statistics (HOS) baseband processing is proposed as a possible candidate solution. The remarkable difference of our approach as compared to other existing similar techniques is the idea of the minimization of the mean squared error using fourth-order cumulants alone and nonblind criteria. A recursive Jacobi total least squares algorithm is used in the adaptive implementation to mitigate the effects of high error variance in the estimates of the cumulants based on sample statistics. The method is shown to be very effective in a fast fading environment with multiple cochannel interferers.
机译:研究了当前美国数字蜂窝通信系统反向链路中的天线阵列处理问题,并提出了高于二阶统计量(HOS)的基带处理作为可能的候选解决方案。与其他现有类似技术相比,我们的方法的显着差异是仅使用四阶累积量和非盲准则将均方误差最小化的想法。自适应实现中使用递归Jacobi总最小二乘算法,以减轻基于样本统计量的累积量估计中高误差方差的影响。该方法在具有多个同信道干扰源的快速衰落环境中显示出非常有效的效果。

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