电讯技术2017，Vol.57Issue(8)：880-884,5.DOI:10.3969/j.issn.1001-893x.2017.08.005
一种用于BICM-ID系统的新颖8 APSK映射方案
A Novel Mapping Scheme of 8 APSK Modulation for BICM-ID Systems
摘要
Abstract
In order to increase the channel capacity and improve the coding gain( CG) and spectral efficiency through the high order modulation signal,the 8APSK constellation mapping scheme is optimized. A novel(2, 6) -scheme 8APSK mapping scheme based on the Euclidean distance design criterion is proposed and ap-plied to the bit-interleaved coded modulation with iterative decoding(BICM-ID) systems,which combines LDPC(4599,4307) codes constructed by the quasi-cyclic( QC) method. The channel capacity simulation result shows that the new scheme has excellent mutual information performance in the high and low signal-to-noise ratio(SNR) regions. The bit error rate(BER) performance simulation indicates that the CG of new scheme joining the LDPC(4599,4307) code has improved 0. 45 dB、1. 10 dB、1. 62 dB、2. 13 dB than(4,4)-scheme 8APSK mapping scheme,Gray mapping,Set Partition(SP) mapping,and semi set partition(SSP) mapping of 8PSK respectively. Extrinsic information transfer(EXIT) graph simulation shows that the new scheme can open the decoding channel earlier,further more,it can achieve error-free decoding by iteration.关键词
比特交织编码调制迭代译码/8APSK星座映射/LDPC码/编码增益Key words
bit-interleaved coded modulation with iterative decoding ( BICM-ID )/8 APSK constellation mapping/LDPC code/coding gain分类
信息技术与安全科学引用本文复制引用
袁建国,汪哲,郭乔,吴英冬,胡潇月,王永..一种用于BICM-ID系统的新颖8 APSK映射方案[J].电讯技术,2017,57(8):880-884,5.基金项目
国家自然科学基金资助项目(61472464) （61472464）
重庆市基础与前沿研究计划项目(cstc2015jcyjA0554) （cstc2015jcyjA0554）
重庆市研究生科研创新项目资助(CYS17241) （CYS17241）
重庆邮电大学大学生科研训练计划项目(A2016-61) （A2016-61）
