Application of LLR-BP optimization algorithm in MIMO-OFDM

摘要：

　　This paper introduces the Multiple Input Multiple Output (MIMO),Orthogonal Frequency Division Multiplexing (OFDM) and Low Density Parity Check Code (LDPC).Then,this paper gives the improved log domain Back Propagation (BP) decoding algorithm optimizing the variable nodes and simplifying the check nodes.The ameliorate approach can reduce the decoding complexity,at the same time improving the decoding performance.Finally,builds a MIMO-OFDM communication system.Then it studies the application of LDPC on the MIMO-OFDM systems.Taking use the software simulation,this paper compares the influence of Bit Error Rate (BER) performance of different parameters on the system.

关键词： LDPC LLR-BP MIMO OFDM

作者: Jia Huang Ruian Liu Lirong Diao

作者单位: Department of Electronics, College of Electronics and Communications Engineering, Tianjin Normal University, TJ-300387 Tianjin, China, of first author, including country

会议类型: 国际会议

会议名称: 2016 2nd International Conference on Mechanical, Electronic and Information Technology Engineering(2016机械、电子和信息技术国际会议)

会议地点: 重庆

会议语种:英文

页码: 179-184

在线出版日期: 2016-03-21（万方平台首次上网日期，不代表论文的发表时间）