Reduced-Complexity Syndrome-Based TTCM Decoding

被引：6

作者：

Babar, Zunaira ^{[1
]}

Ng, Soon Xin ^{[1
]}

Hanzo, Lajos ^{[1
]}

机构：

[1] Univ Southampton, Sch Elect & Comp Sci, Southampton SO17 1BJ, Hants, England

来源：

IEEE COMMUNICATIONS LETTERS | 2013年 / 17卷 / 06期

基金：

欧洲研究理事会; 英国工程与自然科学研究理事会;

关键词：

Syndrome decoding; TTCM; error trellis; block syndrome decoding; iterative decoding; TRELLIS-CODED MODULATION; CONVOLUTIONAL-CODES;

D O I：

10.1109/LCOMM.2013.050313.130182

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

The iterative decoder of Turbo Trellis Coded Modulation (TTCM) exchanges extrinsic information between the constituent TCM decoders, which imposes a high computational complexity at the receiver. Therefore we conceive the syndrome-based block decoding of TTCM, which is capable of reducing the decoding complexity by disabling the decoder, when syndrome becomes zero. Quantitatively, we demonstrate that a decoding complexity reduction of at least 17% is attained at high SNRs, with at least 20% and 45% reduction in the 5th and 6 th iterations, respectively.

引用

页码：1220 / 1223

页数：4

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