基于空时MMSE多用户检测的DS-CDMA系统中卷积码和RS码的性能

IEEE 54th Vehicular Technology Conference. VTC Fall 2001. Proceedings (Cat. No.01CH37211) Pub Date : 2001-10-07 DOI:10.1109/VTC.2001.956897

W. Hamouda, P. McLane

{"title":"基于空时MMSE多用户检测的DS-CDMA系统中卷积码和RS码的性能","authors":"W. Hamouda, P. McLane","doi":"10.1109/VTC.2001.956897","DOIUrl":null,"url":null,"abstract":"In this paper we investigate the performance of a minimum mean square error (MMSE) multi-user detector (MUD) using antenna array processing and forward error correction channel codes (FEC) in a synchronous direct-sequence code-division multiple access (DS-CDMA) system over both additive white Gaussian noise (AWGN) and flat Rayleigh fading channels. Two different channel codes are considered in a binary phase shift-keyed (BPSK) modulation system; Reed-Solomon (RS) and convolutional codes. Through computer simulations, a comparison between the two codes shows that convolutional codes and soft decision decoding can offer at least 2 dB coding gain over the hard decision RS decoding in an AWGN channel and approximately a 5 dB gain in a flat fading channel at a BER of 10/sup -4/. In the paper, such results are compared with these in the text (Wicker 1995) for the single user case and AWGN channels.","PeriodicalId":129008,"journal":{"name":"IEEE 54th Vehicular Technology Conference. VTC Fall 2001. Proceedings (Cat. No.01CH37211)","volume":"373 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2001-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Performance of convolutional and RS codes in DS-CDMA systems using space-time MMSE multiuser detection\",\"authors\":\"W. Hamouda, P. McLane\",\"doi\":\"10.1109/VTC.2001.956897\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this paper we investigate the performance of a minimum mean square error (MMSE) multi-user detector (MUD) using antenna array processing and forward error correction channel codes (FEC) in a synchronous direct-sequence code-division multiple access (DS-CDMA) system over both additive white Gaussian noise (AWGN) and flat Rayleigh fading channels. Two different channel codes are considered in a binary phase shift-keyed (BPSK) modulation system; Reed-Solomon (RS) and convolutional codes. Through computer simulations, a comparison between the two codes shows that convolutional codes and soft decision decoding can offer at least 2 dB coding gain over the hard decision RS decoding in an AWGN channel and approximately a 5 dB gain in a flat fading channel at a BER of 10/sup -4/. In the paper, such results are compared with these in the text (Wicker 1995) for the single user case and AWGN channels.\",\"PeriodicalId\":129008,\"journal\":{\"name\":\"IEEE 54th Vehicular Technology Conference. VTC Fall 2001. Proceedings (Cat. No.01CH37211)\",\"volume\":\"373 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2001-10-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"IEEE 54th Vehicular Technology Conference. VTC Fall 2001. Proceedings (Cat. No.01CH37211)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/VTC.2001.956897\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE 54th Vehicular Technology Conference. VTC Fall 2001. Proceedings (Cat. No.01CH37211)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/VTC.2001.956897","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 2

摘要

本文研究了同步直接序列码分多址(DS-CDMA)系统在加性高斯白噪声(AWGN)和平面瑞利衰落信道下，采用天线阵列处理和前向纠错信道码(FEC)的最小均方误差(MMSE)多用户检测器(MUD)的性能。在二元相移键控(BPSK)调制系统中考虑了两种不同的信道码;里德-所罗门(RS)和卷积码。通过计算机仿真，两种编码的比较表明，在AWGN信道中，卷积码和软判决译码比硬判决RS译码至少提供2db的编码增益，在10/sup -4/的BER下，在平坦衰落信道中可以提供约5db的编码增益。在本文中，这些结果与文本(Wicker 1995)中关于单用户情况和AWGN通道的结果进行了比较。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Performance of convolutional and RS codes in DS-CDMA systems using space-time MMSE multiuser detection

In this paper we investigate the performance of a minimum mean square error (MMSE) multi-user detector (MUD) using antenna array processing and forward error correction channel codes (FEC) in a synchronous direct-sequence code-division multiple access (DS-CDMA) system over both additive white Gaussian noise (AWGN) and flat Rayleigh fading channels. Two different channel codes are considered in a binary phase shift-keyed (BPSK) modulation system; Reed-Solomon (RS) and convolutional codes. Through computer simulations, a comparison between the two codes shows that convolutional codes and soft decision decoding can offer at least 2 dB coding gain over the hard decision RS decoding in an AWGN channel and approximately a 5 dB gain in a flat fading channel at a BER of 10/sup -4/. In the paper, such results are compared with these in the text (Wicker 1995) for the single user case and AWGN channels.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

IEEE 54th Vehicular Technology Conference. VTC Fall 2001. Proceedings (Cat. No.01CH37211)

自引率

0.00%

发文量