| V-BLAST信号的宽线性反馈判决检测 |
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| 引用本文： | 曾昆,唐友喜.V-BLAST信号的宽线性反馈判决检测[J].电子科技大学学报(社会科学版),2008(3). |
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| 作者姓名： | 曾昆 唐友喜 |
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| 作者单位： | 电子科技大学通信抗干扰国家级重点实验室;电子科技大学通信抗干扰国家级重点实验室 成都; |
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| 基金项目： | 国家自然科学基金(60496313、60572090); 教育部博士点基金(20050214009) |
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| 摘 要： | 针对V-BLAST结构接收机采用传统反馈判决检测在高信噪比高端出现的检测性能不佳的问题,设计了一种具有更加检测性能的基于最小均方误差准则的宽线性反馈判决检测算法。计算机仿真结果显示,该算法采用最优子流检测顺序时,在信噪比的低端及高端,其误码率性能均逼近最大似然检测;当采用随机子流检测顺序时,这种算法的误码率性能仍优于Golden MMSE检测算法。在相同算法下,采用宽线性检测至少带来了3dB的性能增益。
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| 关 键 词： | 反馈判决检测 最小均方误差 多输入多输出 宽线性 |
Widely Linear Decision Feedback Detection for V-BLAST Signals |
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| ZENG Kun , TANG You-xi.Widely Linear Decision Feedback Detection for V-BLAST Signals[J].Journal of University of Electronic Science and Technology of China(Social Sciences Edition),2008(3). |
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| Authors: | ZENG Kun TANG You-xi |
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| Institution: | ZENG Kun , TANG You-xi (National Key Laboratory of Communications,University of Electronic Science , Technology of China Chengdu 610054) |
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| Abstract: | A new minimum mean squared error (MMSE) detector based on widely linear processing combined with the decision feedback (DF) strategy for V-BLAST signals is proposed. It can deal with the poor performance of traditional DF detection under higher signal-noise-ratio (SNR). Simulations show that the performance of the proposed scheme utilizing optimal order approaches that of maximum likelihood detection. Furthermore, the algorithm with random order outperforms the Golden MMSE detection. Under the same simulati... |
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| Keywords: | decision feedback detection minimum mean squared error multiple input multiple output widely linear process |
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