Compact self-constructing recurrent fuzzy neural network with decision feedback for quadrature amplitude modulation signaling systems

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题名:	Compact self-constructing recurrent fuzzy neural network with decision feedback for quadrature amplitude modulation signaling systems
作者:	Chang,YJ;Ho,CL
贡献者:	通訊工程學系
关键词:	BACKPROPAGATION ALGORITHM;EQUALIZER
日期:	2011
上传时间:	2012-03-27 18:54:37 (UTC+8)
出版者:	國立中央大學
摘要:	This paper proposes a novel adaptive decision feedback equalizer (DFE) based on compact self-constructing recurrent fuzzy neural network (CSRFNN) for quadrature amplitude modulation systems. Without the prior knowledge of channel characteristics, a novel training scheme containing both compact self-constructing learning (CSL) and real-time recurrent learning algorithms is derived for the CSRFNN. The proposed CSL algorithm adopts two evaluation criteria to intelligently decide the number of fuzzy rules that are necessary. The real-time recurrent learning is performed simultaneously with the CSL at each time instant to adjust DFE parameters. The proposed DFE is compared with several neural network-based DFEs on a nonlinear complex-valued channel. The results show that the CSRFNN DFE is superior to classical neural network DFEs in terms of symbol-error rate, convergence speed, and time cost. Copyright (C) 2011 John Wiley & Sons, Ltd.
關聯:	INTERNATIONAL JOURNAL OF ADAPTIVE CONTROL AND SIGNAL PROCESSING
显示于类别:	[通訊工程學系] 期刊論文

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