A Design of Precoding and Equalisation for Broadband MIMO Systems
A Design of Precoding and Equalisation for Broadband MIMO Systems
复制标题
宽带MIMO系统预编码与均衡设计
DOI：
10.1109/icdsp.2007.4288646
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发表时间：
2007
期刊：
影响因子：
--
通讯作者：
Stephan Weiss
中科院分区：
文献类型：
--
作者：
C. Ta;Stephan Weiss
我们提出了一种新的频率选择性 MIMO 信道预编码和均衡方法，通过应用最近提出的宽带奇异值分解将 MIMO 信道矩阵解耦为独立的频率选择性 SISO 子信道。第二步，使用文献中报道的方法消除子信道中存在的 ISI。第一步不仅有助于消除同信道干扰，而且还能消除部分符号间干扰，并且信道功率增益损失非常小。它还有助于更有效地使用系统资源，从而获得更好的性能。论文给出的数值例子表明，我们提出的方法可以提供比基准设计更好的误码率性能。在服务质量约束下，我们的设计可以实现比基准设计更高的数据吞吐量和互信息，同时保持相似的错误性能。
We propose a new approach to precoding and equalisation for frequency selective MIMO channels by applying a recently proposed broadband singular value decomposition to decouple the MIMO channel matrix into independent frequency selective SISO subchannels. In a second step, ISI present in the subchannels is eliminated using methods reported in the literature. The first step helps to remove not only co-channel interference but also eliminates part of the inter-symbol interference with a very small loss in channel power gain. It also helps to use the system resource more effectively, leading to a better performance. The numerical example given in the paper shows that our proposed method can provide better bit error rate performance than that of the benchmark design. Under a quality of service constraint, our design can achieve higher data throughput and mutual information than that of the benchmark design while maintaining a similar error performance.