An Improved MMSE Turbo Equalization Algorithm in Frequency Domain

摘要：

　　Turbo equalization is an iterative technique for the equalization and decoding of data that has been transmitted over the inter-symbol interference (ISI) channels.A number of suboptimal and low-complexity equalization algorithms have been developed to replace the optimal maximum a probability (MAP) equalizer.In this paper,we present an improved turbo minimum mean-squared error (MMSE) equalization algorithm in frequency domain.It is motivated by the existing turbo MMSE frequency domain equalization algorithm and further improved to perform well even in the severe frequency-selective channels while keeping a comparable complexity.Simulation results show that the new algorithm achieves a performance gain of 1.6 dB in Proakis B channel and 2.4 dB in Proakis C channel in comparison with the existing algorithm.

关键词： turbo equalization frequency domain MMSE SISO

作者: Bo Wu Kai Niu Ping Gong Shaohui Sun

作者单位: Key Lab of Universal Wireless Communications, Ministry of Education, BUPT;State Key Laboratory of Wi Key Lab of Universal Wireless Communications, Ministry of Education, BUPT State Key Laboratory of Wireless Mobile Communications, CATT Beijing, P.R. China

会议类型: 国际会议

会议名称: 2012 IEEE 14th International Conference on Communication Technology(2012年第十四届通信技术国际会议(ICCT 2012))

会议地点: 成都

会议语种:英文

页码: 564-568

在线出版日期: 2012-11-09（万方平台首次上网日期，不代表论文的发表时间）