Low-Density Parity-Check Codes for Noncoherent UWB Communication Systems  

作　　者：Zhonghua Liang Junshan Zang Xiaojun Yang Xiaodai Dong Huansheng Song 

机构地区：[1]School of Information Engineering, Chang'an University [2]Jushri Technologies Inc [3]Department of Electrical and Computer Engineering, University of Victoria

出　　处：《China Communications》2017年第7期152-162,共11页中国通信（英文版）

基　　金：supported in part by the National Natural Science Foundation of China under Grant 61271262, 61473047 and 61572083;Shaanxi Provincial Natural Science Foundation under Grant 2015JM6310;the Special Fund for Basic Scientific Research of Central Colleges, Chang’an University under Grant 310824152010 and 00092014G1241043

摘　　要：In order to guarantee reliable data transmission, powerful channel coding techniques are usually required in noncoherent ultra-wideband(UWB) communication systems. Accordingly, several forward error correction(FEC) codes, such as Reed-Solomon and convolutional codes have been used in noncoherent UWB systems to improve the bit error rate(BER) performance. In this paper, low-density parity-check(LDPC) codes are further studied as more powerful FEC candidates for noncoherent UWB systems. Two LDPC codes and the corresponding decoding procedures are presented for noncoherent UWB systems. Moreover, performance comparison between the LDPC codes and other FEC codes are provided for three major noncoherent UWB communication systems, namely, noncoherent pulse position modulation(NC-PPM), transmitted reference(TR) and transmitted reference pulse cluster(TRPC). Both theoretical analysis and simulation results show that the two investigated LDPC codes outperform other existing FEC codes with limited penalty in terms of complexity and therefore they are promising FEC candidates for noncoherent UWB systems with low-cost and low-power consumption.In order to guarantee reliable data transmission, powerful channel coding techniques are usually required in noncoherent ultra-wideband（UWB） communication systems. Accordingly, several forward error correction（FEC） codes, such as Reed-Solomon and convolutional codes have been used in noncoherent UWB systems to improve the bit error rate（BER） performance. In this paper, low-density parity-check（LDPC） codes are further studied as more powerful FEC candidates for noncoherent UWB systems. Two LDPC codes and the corresponding decoding procedures are presented for noncoherent UWB systems. Moreover, performance comparison between the LDPC codes and other FEC codes are provided for three major noncoherent UWB communication systems, namely, noncoherent pulse position modulation（NC-PPM）, transmitted reference（TR） and transmitted reference pulse cluster（TRPC）. Both theoretical analysis and simulation results show that the two investigated LDPC codes outperform other existing FEC codes with limited penalty in terms of complexity and therefore they are promising FEC candidates for noncoherent UWB systems with low-cost and low-power consumption.

关 键 词：UWB NONCOHERENT channel coding LDPC codes 

分 类 号：TN911.22[电子电信—通信与信息系统] TN925[电子电信—信息与通信工程]