Non-Equiprobable APSK Constellation Labeling Design for BICM Systems

被引：33

作者：

Yang, Fang ^{[1
,2
]}

Yan, Keqian ^{[1
,2
]}

Xie, Qiuliang ^{[4
]}

Song, Jian ^{[1
,2
,3
]}

机构：

[1] Tsinghua Univ, Tsinghua Natl Lab Informat Sci & Technol TNList, Beijing 100084, Peoples R China

[2] Tsinghua Univ, Dept Elect Engn, Beijing 100084, Peoples R China

[3] Shenzhen City Key Lab Digital TV Syst, Shenzhen 518057, Peoples R China

[4] Chinese Natl Engn Lab Digital TV Beijing DTNEL Be, Beijing 100191, Peoples R China

来源：

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

基金：

国家高技术研究发展计划(863计划);

关键词：

Non-equiprobable labeling; APSK; shaping; bit interleaved coded modulation; INTERLEAVED CODED MODULATION;

D O I：

10.1109/LCOMM.2013.050313.130306

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

The previously proposed amplitude phase shift keying (APSK) with Gray labeling achieves a considerable shaping gain in comparison with conventional square quadrature amplitude modulation. In this letter, by reducing the number of points on the inner rings of Gray-APSK and introducing a non-equiprobable (NE) bit-to-symbol labeling, a novel NE-APSK constellation labeling is proposed. NE-APSK provides additional 0.1 dB shaping gain over Gray-APSK without any complexity increase, as illustrated by the mutual information analysis and verified by the bit error rate simulation.

引用

页码：1276 / 1279

页数：4

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