全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
电子学报  2000 

一种新的抗远近效应的盲DS-CDMA接收机

, PP. 57-61

Keywords: 多用户检测,盲均衡,CDMA接收机

Full-Text   Cite this paper   Add to My Lib

Abstract:

本文研究多径频率选择性衰落信道下直接序列扩频码分多址(DS-CDMA)信号的处理问题,提出了一种新型的盲接收机.该接收机不需预知多址干扰用户的扩频码,不需预知信道参数,只需已知期望用户的扩频码和粗略的定时,就可以完成用户的盲检测.同时,该接收机通过降维自适应去相关滤波和基于判决指导的自适应多径合并,来获得低成本和良好的抗衰落、抗远近效应性能.仿真结果验证了本文提出的接收机的优良性能.

References

[1]  A.Naguib and A.Paulraj.Performance of CDMA cellar networks with base-station antenna[C].Proc.International Zurich Seminar on Digital Communications,1994:87-100.
[2]  Xiaodong Wang and H.V.Poor.Space-time multiuser detection in multipath CDMA channels[J].IEEE Trans.Signal Processing,1999,47(9):2356-2374.
[3]  J.C.Liberti and T.S.Rappaport.Smart Antenna for Wireless Communications[M].Prentice Hall,New Jersey,USA,1999.
[4]  M.L.Honig,U.Madhow and S.Verdu.Blind adaptive multiuser detection[J].IEEE Trans.Inform.Theory,1995,41(7):944-996.
[5]  J.B.Schodorf and D.B.Williams.A constrained adaptive diversity combiner for interference suppression in CDMA systems[C].Proc.ICASSP''96,1996:2666-2669.
[6]  B.D.Van Veen.An analysis of several partially adaptive beamformer designs[J].IEEE Trans.ASSP,1989,37(2):192-203.
[7]  S.Haykin.Adaptive Filter Theory[M].Third Edition,Prentice Hall,New Jersey,USA,1996.
[8]  M.D.Zoltowski and J.Ramos.Blind multi-user access interference cancellation for CDMA based PCS/cellular using antenna arrays[C].Proc.ICASSP''96,1996:2730-2733.
[9]  Hui Liu and Kemin Li.A decorrelating RAKE receiver for CDMA communications over frequency-selective fading channels[J].IEEE Trans.Commun.,1999,47(7):1036-1045.
[10]  A.Kansal,S.N.Batalama and D.A.Pados.Adaptive maximum SINR RAKE filtering for DS-CDMA multipath fading channels[J].IEEE J.Select.Areas Commun.,1998,16(12):1765-1773.
[11]  J.B.Schodorf and D.B.Williams.Array processing techniques for multiuser detection[J].IEEE Trans.Commun.,1997,45(11):1375-1378.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133