Low complexity Chase-2 decoding of concatenated codes

被引：0
|
作者：
Liu XiaoJian [1 ]
Zhao ChunMing [1 ]
Sun XiaoJun [1 ]
机构：
[1] Southeast Univ, Natl Mobile Commun Res Lab, Nanjing 210096, Peoples R China
来源：
CHINESE SCIENCE BULLETIN | 2010年 / 55卷 / 26期
关键词：
concatenated code; RS code; RSC code; Chase decoding algorithm; BCJR;
D O I：
10.1007/s11434-009-3572-y
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
The concatenated codes are widely used in current communication systems, such as satellite communication systems and WiMAX system. The objective of this study was to present a low complexity iterative soft decoding algorithm for concatenated codes. The concatenation was between a Reed-Solomon (RS) code and recursive systematic convolutional (RSC) code. The reduction in computational complexity was achieved by simplifying the Chase-2 decoder for RS codes with limited usage of test patterns. The processing of soft information between inner and outer decoders was also discussed. Simulation results showed that the proposed algorithm could achieve a good trade-off between complexity and performance.
引用
收藏
页码：3066 / 3070
页数：5
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