An Improved MMSE Turbo Equalization Algorithm in Frequency Domain

被引：0
|
作者：
Wu, Bo [1 ]
Niu, Kai [1 ]
Gong, Ping [1 ]
Sun, Shaohui [2 ]
机构：
[1] BUPT, Key Lab Univ Wireless Commun, Minist Educ, Beijing, Peoples R China
[2] State Key Lab Wireless Mobile Communicat, CATT, Beijing, Peoples R China
来源：
PROCEEDINGS OF 2012 IEEE 14TH INTERNATIONAL CONFERENCE ON COMMUNICATION TECHNOLOGY | 2012年
基金：
中国国家自然科学基金;
关键词：
turbo equalization; frequency domain; MMSE; SISO; INTERFERENCE;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
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.
引用
收藏
页码：444 / 448
页数：5
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