2-LEVEL CODING BASED ON TRELLIS-CODED MODULATION AND REED-SOLOMON CODES

被引：0
|
作者：
WEI, LF
机构：
来源：
IEEE TRANSACTIONS ON COMMUNICATIONS | 1994年 / 42卷 / 12期
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D O I：
暂无
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：
A number of two-level codes based on trellis-coded modulation (TCM) schemes and their matched single or double error-correcting Reed-Solomon codes using QAM constellations are presented and evaluated. Compared to the well-known 4-D 16-state TCM scheme with a comparable bandwidth efficiency, these two-level codes provide greater immunity from both Gaussian and impulse noise, at the cost of a reasonably higher complexity and a longer decoding delay, on the order of a few hundred symbols. We also show how to cope with phase ambiguities of the constellation in these two-level codes. Both rotationally invariant coding and rotation detecting techniques are considered.
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页码：3098 / 3108
页数：11
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