Advanced Search
Volume 30 Issue 10
Jan.  2011
Turn off MathJax
Article Contents
Ju Mei-Yan, Ran Ming. Channel Estimation in Time Domain and Frequency Domain for Multiuser MC DS-CDMA Systems[J]. Journal of Electronics & Information Technology, 2008, 30(10): 2537-2540. doi: 10.3724/SP.J.1146.2007.01490
Citation: Ju Mei-Yan, Ran Ming. Channel Estimation in Time Domain and Frequency Domain for Multiuser MC DS-CDMA Systems[J]. Journal of Electronics & Information Technology, 2008, 30(10): 2537-2540. doi: 10.3724/SP.J.1146.2007.01490

Channel Estimation in Time Domain and Frequency Domain for Multiuser MC DS-CDMA Systems

doi: 10.3724/SP.J.1146.2007.01490
  • Received Date: 2007-09-18
  • Rev Recd Date: 2007-12-28
  • Publish Date: 2008-10-19
  • This paper proposes one channel estimation scheme for multiuser MC DS-CDMA systems. Based on the averaged channel estimation in time domain, the averaged channel estimation in frequency domain is used to improve further the performance of channel estimation. The simulation results show that the averaged channel estimation in time domain could largely filter out the Multiple Access Interference (MAI) and noise and improve the accuracy of channel estimation. Followed by one averaged channel estimation in frequency domain, the BER performance of systems still has further improvement. After two times of channel estimation, the system performance approximates to that of the ideal channel estimation.
  • loading
  • [1] Prasad R and Hara S. Overview of multicarrier CDMA. IEEECommun. Mag., 1997, 35(12): 126-133. [2] DaSilva V M and Sousa E S. Performance of orthogonalCDMA codes for quasi-synchronous communication systems.Proc. of IEEE ICUPC93, Ottawa, Canada, Oct. 1993:995-999. [3] Yang Lie-liang and Hanzo Lajos. Performance of broandbandmulticarrier DS-CDMA using space-time spreading-assistedtransmit diversity[J].IEEE Trans. on Wireless communications.2005, 4(3):885-894 [4] 居美艳, 酆广增. 一种联合均衡和多用户检测的SDCMA盲算法[J].电子与信息学报.2006, 28(8):1403-1407浏览 [5] 居美艳, 酆广增. MC DS-CDMA 系统中的常模盲检测方法,通信学报, 2007, 28(3): 47-51.Ju Mei-yan and Feng Guang-zeng. CMA blind detection forMC DS-CDMA systems. Journal on Communications, 2007,28(3): 47-51. [6] Guey Jiann-Ching. Channel estimation improvement formulti-carrier DS-CDMA. IEEE VTC 2003-Fall, Orlando,Florida, USA, 6-9 Oct. 2003, Vol.2: 1199-1203. [7] Atarashi H, Abeta S, Sawahashi M, and Adachi F. Iterativedecision-directed path search and channel estimation formulti-carrier/DS-CDMA Broadband packet wireless access.IEEE Proc. of VTC 2000-Spring, Tokyo, Japan, 15-18 May2000, Vol.1: 420-424. [8] Hara Y, Taira A, and Sekiguchi T. Performance of channelestimation techniques for MC-CDMA systems. IEEE VTC2003-Spring, Jeju Island, Korea, 22-25 April 2003, Vol.3:2115-2119. [9] Ju Meiyan and Feng Guangzeng. A novel channel estimationscheme in MC DS-CDMA systems. Proceedings of ICCC2004,Beijing, China, 2004: 803-808. [10] Jakes W C. Microwave Mobile Communications. Piscataway,NJ: IEEE Press, 1974: 65-76.
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article views (3507) PDF downloads(746) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return