基于Qc-LDPC编码和阵列接收的通信系统研究  

Research on Wireless Communication Systems Based on Qc-LDPC Code and Antenna Array

作　　者：赵亮[1] 翟建勇[1] 

机构地区：[1]中国电子科技集团公司第二十研究所,西安710068

出　　处：《现代导航》2014年第6期442-445,共4页Modern Navigation

摘　　要：准循环Qc-LDPC编码具有构造简单,译码复杂度低,纠错性能优良等优点在通信及卫星导航领域得到广泛关注。多路径传输效应是影响无线通信系统性能的主要因素,自适应判决反馈均衡器是消除信道多径效应的有效手段。本文基于不规则Qc-LDPC编码和多通道自适应判决反馈均衡器,进行无线通信系统设计,以获得良好的数据传输性能。Matlab仿真验证了系统方案的有效性。Quasi cyclic-Low Density Parity Check （Qc-LDPC） codes have the characteristics of simple structure, low decoding complexity and good performance of error correction. Multipath fading is an important factor of degrading the communication system performance. Adaptive decision feedback equalizer is an effective technology to overcome the multipath affection. Based on irregular Qc-LDPC codes and multi-channel adaptive decision feedback equalizer, a wireless communication system is proposed to obtain better performance of data transmission. Matlab simulation proves the validity of the proposed system.

关 键 词：Qc—LDPC编码 多天线阵列 无线通信 

分 类 号：TN911[电子电信—通信与信息系统]