Joint MMSE beamforming with SIC for an overloaded array system

2001 MILCOM Proceedings Communications for Network-Centric Operations: Creating the Information Force (Cat. No.01CH37277) Pub Date : 2001-10-28 DOI:10.1109/MILCOM.2001.986056

J. Tsai, J. Hicks, B. Woerner

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引用次数: 9

Abstract

We propose a new signal extraction method that combines MMSE beamforming with successive interference cancellation (SIC) for an overloaded antenna array system. By an overloaded array system, we mean that the number of desired signals exceeds the number of distinct antenna elements, often by a significant amount. We evaluate the performance of the proposed signal extraction method through the use of bit error rate (BER) simulation. The simulation results show that the new signal extraction method can increase the number of users that can be supported in an airborne communication environment. We also evaluate the effects of directional antenna patterns on the performance of the proposed signal extraction method. Performance results for an 8 element antenna array show that the proposed signal extraction method with a 60/spl deg/ half-power beam width (HPBW) directional pattern can support up to 16 users (twice as many as number of antenna elements) and a 30/spl deg/ HPBW directional pattern can support up to 24 users (three times as many as number of antenna elements).

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超载阵列系统中SIC与MMSE联合波束形成

提出了一种将MMSE波束形成与连续干扰消除相结合的过载天线阵信号提取方法。通过过载阵列系统，我们的意思是所需信号的数量超过了不同天线单元的数量，通常是相当大的数量。我们通过使用误码率(BER)仿真来评估所提出的信号提取方法的性能。仿真结果表明，新的信号提取方法可以增加机载通信环境下支持的用户数量。我们还评估了定向天线方向图对所提出的信号提取方法性能的影响。8元天线阵列的性能结果表明，采用60/spl度/半功率波束宽度(HPBW)方向图的信号提取方法最多可支持16个用户(天线单元数的两倍)，采用30/spl度/ HPBW方向图的信号提取方法最多可支持24个用户(天线单元数的三倍)。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2001 MILCOM Proceedings Communications for Network-Centric Operations: Creating the Information Force (Cat. No.01CH37277)

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