REDUCED COMPLEXITY BLIND CHANNEL ESTIMATION FOR ADAPTIVE CONSTRAINED MINIMUM VARIANCE RECEIVERS IN MC-CDMA SYSTEMS

被引:0
|
作者
Medina, Cesar A. [1 ]
Vinhoza, Tiago T. V. [1 ]
Sampaio-Neto, Raimundo [1 ]
机构
[1] Pontificia Catholic Univ Rio de Janeiro PUC Rio, Ctr Telecommun Studies CETUC, Rio De Janeiro, Brazil
关键词
Multicarrier CDMA; blind channel estimation; adaptive interference suppression; linearly constrained minimum variance receivers;
D O I
10.1109/SPAWC.2008.4641661
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 we propose a blind adaptive channel estimator for multicarrier CDMA systems. The proposed algorithm is derived from the stochastic gradient solution for the linearly constrained minimum variance detector and it is shown to present lower computational complexity when compared to a well-known solution. It is shown through computer simulations that both the channel estimation and receiver filter achieve a slightly better performance than previously proposed methods.
引用
收藏
页码:516 / 519
页数:4
相关论文
共 50 条
  • [1] Adaptive blind receivers for MC-CDMA communication systems
    Chen, Jun-Da
    Ueng, Fang-Biau
    Chen, Chien-Hung
    WIRELESS COMMUNICATIONS & MOBILE COMPUTING, 2015, 15 (01): : 71 - 86
  • [2] Further Results on the Performance of Minimum Variance Channel Estimation Algorithms for MC-CDMA Systems
    Nazar, Shahrokh Nayeb
    Psaromiligkos, Ioannis N.
    2006 IEEE 64TH VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-6, 2006, : 1607 - 1611
  • [3] Efficient Minimum Variance receivers for MC-CDMA systems using transmit diversity
    Nazar, Shahrokh Nayeb
    Psaromiligkos, Ioannis N.
    2006 FORTIETH ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS AND COMPUTERS, VOLS 1-5, 2006, : 2209 - +
  • [4] Widely Linear Minimum Variance channel estimation for MC-CDMA systems using real modulation
    Abdallah, Saeed
    Psaromiligkos, Ioannis N.
    2007 CANADIAN CONFERENCE ON ELECTRICAL AND COMPUTER ENGINEERING, VOLS 1-3, 2007, : 757 - 760
  • [5] Blind linear MMSE receivers for MC-CDMA systems
    Cheng, Hui
    Chan, Shing Chow
    IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS, 2007, 54 (02) : 367 - 376
  • [6] Adaptive implementations of two blind channel estimation algorithms on MC-CDMA
    Mashury, S
    Attallah, S
    Zoubir, AM
    ICCS 2002: 8TH INTERNATIONAL CONFERENCE ON COMMUNICATIONS SYSTEMS, VOLS 1 AND 2, PROCEEDINGS, 2002, : 289 - 293
  • [7] Blind adaptive algorithms for minimum variance CDMA receivers
    Xu, ZY
    Tsatsanis, MK
    IEEE TRANSACTIONS ON COMMUNICATIONS, 2001, 49 (01) : 180 - 194
  • [8] Minimum variance channel estimation in MC-CDMA systems: Bias analysis and Cramer-Rao bound
    Nazar, Shahrokh Nayeb
    Psaromiligkos, Ioannis N.
    IEEE TRANSACTIONS ON SIGNAL PROCESSING, 2007, 55 (06) : 3143 - 3148
  • [9] A Blind Channel Estimation Algorithm for Space-Time Coded MC-CDMA Receivers
    Medina, Cesar A.
    Vinhoza, Tiago T. V.
    Sampaio-Neto, Raimundo
    2009 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-8, 2009, : 2850 - 2855
  • [10] Blind channel estimation for MC-CDMA systems with long spreading codes
    Bai Wen-le
    Guo Shu-jun
    Zhang Chang-nian
    Niu Chang-liu
    Liu Ze-min
    2006 INTERNATIONAL SYMPOSIUM ON INTELLIGENT SIGNAL PROCESSING AND COMMUNICATIONS, VOLS 1 AND 2, 2006, : 179 - 182