Influence of channel estimation on the performance of a coherent DS-CDMA system

被引：31
|
作者：
Benthin, M [1 ]
Kammeyer, KD [1 ]
机构：
[1] UNIV BREMEN, BREMEN, GERMANY
来源：
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY | 1997年 / 46卷 / 02期
关键词：
channel estimation; coherent detection; DS-CDMA;
D O I：
10.1109/25.580764
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：
In this paper, the uplink of a coherent direct-sequence code division multiple access (DS-CDMA) system will be investigated. The channel estimation is tarried out via a control channel, which is transmitted simultaneously to the data channel, This concept is very closely related to the CODIT-CDMA concept, In the channel estimation, an averaging process is involved, which for long averaging periods, suppresses the noise influence efficiently. On the other hand, long averaging intervals Lead to systematic errors in the estimated channel coefficients due to the time-variant behavior of the channel. Taking into account these effects, a closed-form analysis of the data-channel symbol-error rate (SER) is presented. This analysis allows predicting the system's performance and helps to optimize the parameter settings for the channel estimation.
引用
收藏
页码：262 / 268
页数：7
相关论文
共 50 条
  • [1] Channel estimation for the uplink of a DS-CDMA system
    D'Amico, AA
    Mengali, U
    Morelli, M
    IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, 2003, 2 (06) : 1132 - 1137
  • [2] Multipath channel estimation for the uplink of a DS-CDMA system
    D'Amico, AA
    Mengali, U
    Morelli, M
    2002 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-5, CONFERENCE PROCEEDINGS, 2002, : 16 - 20
  • [3] Channel estimation in DS-CDMA system based on quantum constraints
    1600, World Scientific and Engineering Academy and Society, Ag. Ioannou Theologou 17-23, Zographou, Athens, 15773, Greece (12):
  • [4] Pilot-symbol assisted channel estimation for coherent DS-CDMA communications
    Wang, HW
    Wei, CH
    ISCAS 2000: IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS - PROCEEDINGS, VOL III: EMERGING TECHNOLOGIES FOR THE 21ST CENTURY, 2000, : 383 - 386
  • [5] Efficient channel estimation in DS-CDMA systems
    Choi, JW
    Lee, YH
    IEICE TRANSACTIONS ON COMMUNICATIONS, 2004, E87B (06) : 1470 - 1478
  • [6] Channel estimation for multirate DS-CDMA systems
    Bhashyam, S
    Sabharwal, A
    Mitra, U
    CONFERENCE RECORD OF THE THIRTY-FOURTH ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS & COMPUTERS, 2000, : 960 - 964
  • [7] Channel estimation for synchronous DS-CDMA downlink
    Weiss, AJ
    Friedlander, B
    NINTH IEEE SIGNAL PROCESSING WORKSHOP ON STATISTICAL SIGNAL AND ARRAY PROCESSING, PROCEEDINGS, 1998, : 284 - 287
  • [8] Performance of blind channel estimation in long code DS-CDMA systems
    Iglesia, DI
    Escudero, CJ
    Castedo, L
    2002 IEEE SEVENTH INTERNATIONAL SYMPOSIUM ON SPREAD SPECTRUM TECHNIQUES AND APPLICATIONS, VOLS 1-3, PROCEEDINGS, 2002, : 219 - 222
  • [9] Comparing DS-CDMA and multicarrier CDMA with imperfect channel estimation
    Chong, LL
    Milstein, LB
    2001 IEEE WORKSHOP ON STATISTICAL SIGNAL PROCESSING PROCEEDINGS, 2001, : 385 - 388
  • [10] Effect of imperfect channel estimation on the performance of pilot channel-aided coherent DS-CDMA system over Rayleigh-fading multipath channel
    Ko, S
    Choi, H
    IEICE TRANSACTIONS ON COMMUNICATIONS, 2000, E83B (03) : 721 - 733
12345