分布式发射天线V-BLAST信号的排序干扰抵消检测
Order-Interference-Cancellation Detection Scheme for V-BLAST Signals with Distributed Transmit Antennas
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摘要: 针对V-BLAST信号通过分布的发射天线进入信道，该文提出了一种由于发射天线地域上的分布性引起的各发射天线发射信号不同时到达接收天线的V-BLAST排序干扰抵消(Order Interference Cancellation, OIC)检测算法。计算机仿真显示，该算法适用于任意个数的接收天线，在较高信噪比(20dB)的条件下，性能优于直接迫零算法3dB以上。在相同信噪比条件下，分布发射天线V-BLAST的排序干扰抵消检测算法比集中发射天线V-BLAST的排序干扰抵消检测算法有着更好的性能。Abstract: An Order-Interference-Cancellation (OIC) detection scheme is presented for Distributed Transmit Antennas Vertical Bell Labs Layered Space-Time (DTA-V-BLAST) systems. Some preliminary simulation results in single-path Rayleigh fading channel show that this algorithm can be used in the system with arbitrary receive antennas, the average bit error rate (BER) performance of this OIC approach is more 3dB better than using direct Zero-Frocing(ZF) scheme on the higher SNR (above 20dB). The capability of DTA-V-BLAST-OIC is better than the Golden scheme used in the V-BLAST signals with co-location transmit antennas with the same SNR.
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Saleh A, Rustako A, Roman R. Distributed antennas for indoor radio communication[J].IEEE Trans. on Communications.1987, 35(12):1245- -
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