Design of turbo-coded modulation for the AWGN channel with Tikhonov phase error

被引:6
|
作者
Zhu, Y [1 ]
Ni, L [1 ]
Belzer, BJ [1 ]
机构
[1] Washington State Univ, Sch Elect Engn & Comp Sci, Pullman, WA 99164 USA
基金
美国国家科学基金会;
关键词
additive white Gaussian noise (AWGN); Tikhonov phase error; turbo-coded modulation;
D O I
10.1109/TCOMM.2005.857158
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
We design 1-b/symbol/Hz parallel concatenated turbo-coded modulation (PCTCM) for the additive white Gaussian noise (AWGN) channel with Tikhonov phase error. Constituent recursive convolutional codes are optimized so that the turbo codes have low error floors and low convergence thresholds. The pairwise error probability based on the maximum-likelihood decoding metric is used to select codes with low error floors. We also present a Gaussian approximation method that accurately predicts convergence thresholds for PCTCM codes on the AWGN/Tikhonov channel. Simulation results show that the selected codes perform within 0.6 dB of constellation constrained capacity, and have no detectable error floor down to bit-error rates of 10(-6).
引用
收藏
页码:1697 / 1707
页数:11
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