A DSP-based Implementation of Low Complexity Turbo Equalization

被引：0
|
作者：
Dou, Gaoqi [1 ]
Gao, Jun [1 ]
Liu, Bing [1 ]
机构：
[1] Naval Univ Engn, Dept Commun Engn, Wuhan 430033, Hubei, Peoples R China
来源：
2008 ISECS INTERNATIONAL COLLOQUIUM ON COMPUTING, COMMUNICATION, CONTROL, AND MANAGEMENT, VOL 2, PROCEEDINGS | 2008年
关键词：
D O I：
10.1109/CCCM.2008.92
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Turbo equalizer exhibits dramatic performance improvement comparing with conventional equalizers by combining equalization and decoding, where soft information is iteratively exchanged between the equalizer and decoder. However, turbo equalization is much more complex and hence precludes practical implementation when considering multilevel modulations over highly dispersive channels. In this letter, we present the implementation of low complexity turbo-equalization based on soft feedback interference cancellation (SFIC) on Texas Instruments TMS320C6416 device. The SFIC offers a very low computational complexity depending only linearly on the channel memory length. With appropriate data quantization, the performance loss is negligible comparing with floating-point turbo equalizer.
引用
收藏
页码：458 / 461
页数：4
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