Windowed Decoding for Delayed Bit-Interleaved Coded Modulation

被引：4
|
作者：
Liao, Yihuan [1 ]
Qiu, Min [1 ]
Yuan, Jinhong [1 ]
机构：
[1] Univ New South Wales, Sch Elect Engn & Telecommun, Sydney, NSW 2052, Australia
来源：
IEEE COMMUNICATIONS LETTERS | 2021年 / 25卷 / 11期
基金：
澳大利亚研究理事会;
关键词：
Decoding; Modulation; Iterative decoding; Delays; Interleaved codes; Reliability; Quadrature amplitude modulation; Low-density parity-check (LDPC) code; delayed bit-interleaved coded modulation (DBICM); bit-interleaved coded modulation (BICM); DESIGN;
D O I：
10.1109/LCOMM.2021.3107104
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
Delayed bit-interleaved coded modulation (DBICM) generalizes bit-interleaved coded modulation (BICM) by modulating differently delayed sub-blocks of codewords onto the same signals. DBICM improves transmission reliability over BICM due to its capability of detecting undelayed sub-blocks with the extrinsic information of the decoded delayed sub-blocks. In this work, we propose a novel windowed decoding algorithm for DBICM, which uses the extrinsic information of both the decoded delayed and undelayed sub-blocks, to improve the detection on all sub-blocks. Numerical results show that the proposed windowed decoding significantly outperforms the original decoding.
引用
收藏
页码：3483 / 3487
页数：5
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