EXIT chart analysis of BICM-ID with imperfect channel state information

被引：10

作者：

Huang, YH ^{[1
]}

Ritcey, JA ^{[1
]}

机构：

[1] Univ Washington, Dept Elect Engn, Seattle, WA 98195 USA

来源：

IEEE COMMUNICATIONS LETTERS | 2003年 / 7卷 / 09期

基金：

美国国家科学基金会;

关键词：

bit-interleaved coded modulation (BICM); BICM-iterative decoding (BICM-ID); extrinsic information transfer (EXIT) chart; imperfect channel state information (CSI);

D O I：

10.1109/LCOMM.2003.817304

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

We analyze the convergence of the iteratively decoded bit-interleaved coded modulation with imperfect channel state information using the extrinsic information transfer, (EXIT) chart. A canonical analysis model is adopted where the power correlation coefficient between the fading and its estimate becomes the key parameter affecting the extrinsic transfer characteristics of the demapper. and hence the convergence of iterative decoding. We further illustrate that decoding convergence can be triggered by tradeoff between the quality of channel estimation and code rate.

引用

页码：434 / 436

页数：3

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