A low-complexity parallel interference cancellation for DS/CDMA systems over rayleigh fading channel

被引：0
|
作者：
Xu, Guoxiong [1 ]
We, Pingjun [1 ]
Ma, Changzheng [1 ]
机构：
[1] Zhongshan Univ Technol, Sch Elect Informat, Zhengzhou 450007, Peoples R China
来源：
IEEE 2007 INTERNATIONAL SYMPOSIUM ON MICROWAVE, ANTENNA, PROPAGATION AND EMC TECHNOLOGIES FOR WIRELESS COMMUNICATIONS, VOLS I AND II | 2007年
关键词：
DS/CDMA; PIC; multi-access interference;
D O I：
暂无
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper firstly investigates all optimal parallel interference cancellation (PIC) scheme for an asynchronous DS/CDMA system. Secondly, to reduce the high implementation complexity encountered by the optimal PIC, we propose a low-complexity PIC by simplifying decision complexity and taking weight of the estimated multi-access interference for each interference cancellation (IC) stage. The performance of the low-complexity PIC over Rayleigh fading channel is analyzed and compared to the optimal PIC and conventional PIC, respectively. The simulation results show that the low-complexity PIC, whether IC weight coefficients are taken or not, shows a performance comparable to the optimal PIC and dominantly outperforms the conventional PIC. It is also shown that the low-complexity PIC with two IC stages is superior to the conventional PIC with three IC stages in performance, which is of practical value because PIC with fewer stages call bring shorter processing delay.
引用
收藏
页码：13 / 16
页数：4
相关论文
共 50 条
  • [41] Performance analysis of parallel interference cancellation in multicarrier DS-CDMA systems
    Kumar, KRS
    Chockalingam, A
    IETE JOURNAL OF RESEARCH, 2005, 51 (01) : 27 - 37
  • [42] The performance of indoor DS-CDMA systems with multistage parallel interference cancellation
    Pais, AV
    Sowerby, KW
    Neve, MJ
    VTC2005-SPRING: 2005 IEEE 61ST VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-5, PROCEEDINGS, 2005, : 1735 - 1739
  • [43] A low-complexity receiver for iterative parallel interference cancellation and decoding in MIMO-OFDM systems
    Lin, Wenfeng
    He, Chen
    AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS, 2008, 62 (01) : 68 - 71
  • [44] Fuzzy adaptive parallel interference cancellation and vector channel prediction for CDMA in fading channels
    Tseng, SM
    Zheng, YB
    Hsu, YT
    Chang, MC
    2002 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-5, CONFERENCE PROCEEDINGS, 2002, : 252 - 256
  • [45] Multistage channel estimation with LMS parallel interference cancellation for asynchronous DS-CDMA in frequency-selective Rayleigh channels
    Xue, XM
    Tjhung, TT
    ISSPA 2001: SIXTH INTERNATIONAL SYMPOSIUM ON SIGNAL PROCESSING AND ITS APPLICATIONS, VOLS 1 AND 2, PROCEEDINGS, 2001, : 406 - 409
  • [46] Optimal Bayesian data fusion and low-complexity approximations for distributed DS-CDMA wireless sensor networks in Rayleigh fading
    Jayaweera, SK
    2005 INTERNATIONAL CONFERENCE ON INTELLIGENT SENSING AND INFORMATION PROCESSING, PROCEEDINGS, 2005, : 19 - 24
  • [47] Weight-optimizing partial parallel interference cancellation based on channel estimation for CDMA systems in fading channels
    Hu, CH
    Youxi, T
    Li, SQ
    Li, ZL
    2003 IEEE 58TH VEHICULAR TECHNOLOGY CONFERENCE, VOLS1-5, PROCEEDINGS, 2003, : 1099 - 1103
  • [48] BER calculation in DS/CDMA over Rayleigh fading channel with power control error using fuzzy systems
    Jabrane, Y.
    Iqdour, R.
    Essaid, B. Ait
    Naja, N.
    COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION, 2009, 14 (02) : 543 - 551
  • [49] Evaluation of a DS/CDMA multiuser receiver employing a hybrid form of interference cancellation in Rayleigh-fading channels
    King's Coll, London, United Kingdom
    Commun Lett, 3 (61-63):
  • [50] Evaluation of a DS/CDMA Multiuser Receiver Employing a Hybrid Form of Interference Cancellation in Rayleigh-Fading Channels
    Koulakiotis, Dimitris
    Aghvami, A. Hamid
    IEEE COMMUNICATIONS LETTERS, 1998, 2 (03) : 61 - 63
12345