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首页> 外文期刊>International Journal of Innovative Computing Information and Control >AN OPTIMUM PRE-FILTER FOR ICA BASED MULTI-INPUT MULTI-OUTPUT OFDM SYSTEM
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AN OPTIMUM PRE-FILTER FOR ICA BASED MULTI-INPUT MULTI-OUTPUT OFDM SYSTEM

机译：基于ICA的多输入多输出OFDM系统的最佳预滤波器。

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摘要

This paper presents an optimum pre-filter for ICA based multi-input multi-output OFDM system. In our former work, we presented a pre-filter solution for multiuser reconstruction in ICA based MIMO-OFDM systems [1,2]. Here, based on the structure of the system and former pre-filter solution, an optimization problem has been designed to give us the optimum pre-filter. The designed problem is based on minimization of the estimation error of ambiguities inherent to ICA in reconstruction of the data after separation. The optimization problem is mathematically solved and a set of optimized coefficients are obtained. Among the obtained set as optimum coefficients, optimum coefficients are acquired in a way not only minimize the estimation error of multiuser data reconstruction, but also lead the least error probability in detection of demodulated symbols.
机译：本文提出了一种基于ICA的多输入多输出OFDM系统的最佳预滤波器。在我们以前的工作中，我们提出了一种基于ICA的MIMO-OFDM系统中用于多用户重建的预滤波器解决方案[1,2]。在此，根据系统的结构和以前的预过滤器解决方案，设计了一个优化问题，以便为我们提供最佳的预过滤器。设计的问题基于最小化ICA固有的歧义估计误差，该估计误差是在分离后重建数据时产生的。用数学方法解决了优化问题，并获得了一组优化系数。在获得的最佳系数集合中，不仅以最小化多用户数据重构的估计误差的方式获得最佳系数，而且在解调符号的检测中导致最小的误差概率。

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