Downlink channel estimation and power control in CDMA systems

被引：0
|
作者：
Kim, H
Koo, J
Kim, K
Han, Y
机构：
来源：
57TH IEEE VEHICULAR TECHNOLOGY CONFERENCE, VTC 2003-SPRING, VOLS 1-4, PROCEEDINGS | 2003年
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：
In wireless communication systems, channel estimation is required not only for the coherent demodulation but also for the higher layer resource utilization. In WCDMA/FDD(Wideband Code Division Multiple Access Frequency Division Duplexing), downlink channel estimation can be performed in both CPICH(common pilot channel) and DPCCH(dedicated physical control channel). In this paper, considering the different link quality between CPICH and DPCCH according to the location of a mobile station(MS), estimation schemes that use both channels are suggested and their performances are compared in terms of mean square error(MSE). Power control effect on DPCCH channel estimation is also investigated in the performance evaluation.
引用
收藏
页码：2236 / 2240
页数：5
相关论文
共 50 条
  • [31] MAP channel-estimation-based PIC receiver for downlink MC-CDMA systems
    Dogan, Hakan
    Panayirci, Erdal
    Cirpan, Hakan A.
    Fleury, Bernard H.
    [J]. EURASIP JOURNAL ON WIRELESS COMMUNICATIONS AND NETWORKING, 2008, 2008 (1)
  • [32] Performance evaluation of received power estimation for power control in CDMA systems
    Sim, ML
    Chuah, HT
    [J]. IEEE 55TH VEHICULAR TECHNOLOGY CONFERENCE, VTC SPRING 2002, VOLS 1-4, PROCEEDINGS, 2002, : 1487 - 1491
  • [33] Pilot diversity channel estimation in power-controlled CDMA systems
    Luo, T
    Ko, YC
    [J]. IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, 2004, 53 (02) : 559 - 563
  • [34] Adaptive channel and power allocation of downlink multi-user MC-CDMA systems
    Wang, Jun-Bo
    Chen, Ming
    Wang, Jiangzhou
    [J]. COMPUTERS & ELECTRICAL ENGINEERING, 2009, 35 (05) : 622 - 633
  • [35] Downlink Power Allocation and Adjustment for CDMA Cellular Systems
    Kim, Dongwoo
    [J]. IEEE COMMUNICATIONS LETTERS, 1997, 1 (04) : 96 - 98
  • [36] A novel channel identification method for downlink multicarrier CDMA systems
    Escudero, CJ
    Iglesia, DI
    Castedo, L
    [J]. PIMRC 2000: 11TH IEEE INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS, VOLS 1 AND 2, PROCEEDINGS, 2000, : 103 - 107
  • [37] Channel estimation for DS-CDMA downlink with aperiodic spreading codes
    Weiss, AJ
    Friedlander, B
    [J]. IEEE TRANSACTIONS ON COMMUNICATIONS, 1999, 47 (10) : 1561 - 1569
  • [38] Performance of channel estimation assisted linear multiuser receivers for downlink CDMA systems with long spreading codes
    Xu, ZY
    Liu, P
    Yu, NH
    [J]. PIMRC 2003: 14TH IEEE 2003 INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS PROCEEDINGS, VOLS 1-3 2003, 2003, : 2978 - 2982
  • [39] EM-Based MAP channel estimation and data detection for downlink MCC-CDMA systems
    Dogan, Hakan
    Panayirci, Erdal
    Cirpan, Hakan A.
    [J]. 2007 IEEE WIRELESS COMMUNICATIONS & NETWORKING CONFERENCE, VOLS 1-9, 2007, : 227 - +
  • [40] Downlink channel covariance matrix (DCCM) estimation and its applications in wireless DS-CDMA systems
    Liang, YC
    Chin, FPS
    [J]. IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, 2001, 19 (02) : 222 - 232
12345