超宽带空间复用系统检测算法分析

Wu Xuan-li, Sun Lu-Kuan, Wang Ruo-nan
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摘要

为了满足更高数据速率的要求,本文提出了一种结合MB-OFDM超宽带和V-BLAST方案的超宽带空间复用系统。然后,对各种检测算法进行了研究和仿真,以获得更好的性能。仿真结果表明,在传统的次优算法中,MMSE-BLAST算法是一种比较合适的算法,第一检测层的精度决定了误差的传播程度。最后,提出了一种结合ML和MMSE-BLAST的改进算法,以减少误差在富多径UWB信道中的传播。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The Analysis of Detection Algorithms in UWB Spatial Multiplexing System
In order to satisfy the requirement for higher data rates, the UWB spatial multiplexing system that combines MB-OFDM UWB and V-BLAST scheme is presented in this paper. And then, various detection algorithms are studied and simulated in this system for the sake of a better performance. Simulation results show that MMSE-BLAST is an appropriate one among the conventional suboptimal algorithms, and the accuracy of the first detected layer determines the degree of error propagation. At last, a modified algorithm with the combination of ML and MMSE-BLAST is employed to reduce error propagation in the UWB channel with rich multipath.
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