A precise Approach for Computing Channel Soft Information

摘要：

LDPC (Low-Density Parity-Check) codes have a good performance close to the Shannon limit. To make full error-correcting performance, soft information is used in iterative decoding algorithm. For different types of modulation, there are different expressions of channel soft information. In this paper, we propose approaches for computing channel soft information precisely for BPSK, QPSK, 16QAM, instead of approximation. Taking the example of CMMB standard, simulation of channel coding with channel soft information is done.

关键词： channel soft information CMMB LDPC

作者: BeiBei Qian Dongping Yao Lei Xiong

作者单位: State Key Laboratory of Rail Traffic Control and Safety, Beijing Jiaotong University Beijing, 100044, China School of Electronics and Information Engineering, Beijing Jiaotong University Beijing, 100044, China

会议类型: 国际会议

会议名称: 2009 3rd IEEE International Symposium on Microwave,Antenna,Progagation and EMC Technologies for Wireless Communications(第三届微波、天线、电波传播和EMC技术国际会议

会议地点: 北京

会议语种:英文

页码: 551-554

在线出版日期: 2009-10-27（万方平台首次上网日期，不代表论文的发表时间）