Asynchronous DS-CDMA detectors robust to timing errors

被引:0
|
作者
Ostman, T
Kristensson, M
Ottersten, B
机构
关键词
D O I
暂无
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
An asynchronous DS-CDMA system with timing errors is considered. Two different approaches for dealing with the problem are presented. The first method is based on robustifying the MMSE estimator against timing errors. The second approach models the timing errors as an extra noise term and formulates the best linear unbiased estimator of the data symbols. Simulations of the bit error rate indicate that the two approaches have similar performance. However, the difference to non robustified algorithms is large.
引用
收藏
页码:1704 / 1708
页数:5
相关论文
共 50 条
  • [31] Blind channel order and delay timing estimation in autonomous decentralized network using asynchronous DS-CDMA
    Watanabe, Tokihito
    Umebayashi, Kenta
    Suzuki, Yasuo
    2013 IEEE 24TH INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR, AND MOBILE RADIO COMMUNICATIONS (PIMRC), 2013, : 907 - 911
  • [32] Crossed-dipole arrays for asynchronous DS-CDMA systems
    Manikas, A
    Ng, JWP
    IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2004, 52 (01) : 122 - 131
  • [33] Joint synchronization and symbol detection in asynchronous DS-CDMA systems
    Rey, F
    Vázquez, G
    Riba, J
    PROCEEDINGS OF THE TENTH IEEE WORKSHOP ON STATISTICAL SIGNAL AND ARRAY PROCESSING, 2000, : 687 - 691
  • [34] Near-Decorrelating Multistage Detector for asynchronous DS-CDMA
    Suzuki, T
    Takeuchi, Y
    IEICE TRANSACTIONS ON COMMUNICATIONS, 1998, E81B (03) : 553 - 564
  • [35] Experimental test results of an asynchronous DS-CDMA satellite system
    Nogueira, AH
    de Carvalho, PHP
    Soares, AJM
    IMOC 2001: PROCEEDINGS OF THE 2001 SBMO/IEEE MTT-S INTERNATIONAL MICROWAVE AND OPTOELECTRONICS CONFERENCE: THE CHALLENGE OF THE NEW MILLENIUM: TECHNOLOGICAL DEVELOPMENT WITH ENVIRONMENTAL CONSCIOUSNESS, 2001, : 35 - 38
  • [36] Estimation of time delays in multirate asynchronous DS-CDMA systems
    Ostman, T
    Ottersten, BE
    Milstein, LB
    1998 IEEE 5TH INTERNATIONAL SYMPOSIUM ON SPREAD SPECTRUM TECHNIQUES AND APPLICATIONS - PROCEEDINGS, VOLS 1-3, 1998, : 97 - 101
  • [37] Iterative multiuser detection for convolutionally coded asynchronous DS-CDMA
    Valenti, MC
    Woerner, BD
    NINTH IEEE INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS, VOLS 1-3, 1998, : 213 - 217
  • [38] Adaptive multiuser detector for asynchronous DS-CDMA in Rayleigh fading
    Dutta, AK
    Kiaei, S
    IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-ANALOG AND DIGITAL SIGNAL PROCESSING, 1997, 44 (06): : 468 - 472
  • [39] Recursive delay estimation and demodulation of asynchronous DS-CDMA signals
    Ratnarajah, T
    Dowlut, NH
    Luo, ZQ
    Wong, KM
    NINTH IEEE SIGNAL PROCESSING WORKSHOP ON STATISTICAL SIGNAL AND ARRAY PROCESSING, PROCEEDINGS, 1998, : 112 - 115
  • [40] Detecting active channels in an asynchronous DS-CDMA multiuser receiver
    Taylor, RM
    Fite, JD
    2003 IEEE 58TH VEHICULAR TECHNOLOGY CONFERENCE, VOLS1-5, PROCEEDINGS, 2003, : 1094 - 1098