Advanced Search
Volume 28 Issue 4
Aug.  2010
Turn off MathJax
Article Contents
Hu Bing, Li Ping-an, Yu Bian-zhang. Blind Interference Suppression for a Space-Time Block Coded MC-CDMA System[J]. Journal of Electronics & Information Technology, 2006, 28(4): 736-740.
Citation: Hu Bing, Li Ping-an, Yu Bian-zhang. Blind Interference Suppression for a Space-Time Block Coded MC-CDMA System[J]. Journal of Electronics & Information Technology, 2006, 28(4): 736-740.

Blind Interference Suppression for a Space-Time Block Coded MC-CDMA System

  • Received Date: 2004-09-20
  • Rev Recd Date: 2005-01-21
  • Publish Date: 2006-04-19
  • This paper considers blind interference suppression for a space-time block coded MultiCarrier CDMA (MC-CDMA) system. By investigating the code space in frequency domain and the data vector space of the multipath signals, the noise-subspace-based approach is used to perform blind channel estimation. A modified ULV updating algorithm is applied to performing noise subspace tracking. The algorithm does not require rank estimation of the correlation matrix, and estimate directly the noise subspace. To suppress Multiuser Access Interference (MAI), a Projection-based Auxiliary Vector (PAV) algorithm is proposed. A reconstructed Maximum Ratio Combining (MRC) filtering vector can be evaluated by using the outputs of the last filtering vector. Taking the orthogonal projection of the reconstructed filtering vector onto the space spanned by the basic filtering vector and the previously derived auxiliary vector as an auxiliary vector, a new filtering vector can be formed by linearly combining the last filtering vector and newly generated auxiliary vector. Simulation results show the effectiveness of the proposed algorithms.
  • loading
  • Tarokh V, Seshadri N, Calderbank A R. Space-time codes for high data rate wireless communications: performance criterion and code construction. IEEE Trans. on Info. Theo., 1998, 44(2): 744765. .[2]Alamouti S M. A simple transmit diversity technique for wireless communications. IEEE J. on SAC, 1998, 16(8): 1451.1458.[3]Yee N, Linnartz J P, Fettweis G. Multicarrier CDMA in indoorwireless radio networks. Proc. of IEEE PIMRC93, Yokohama,Japan, Sept. 1993: 109.113.[4]Cai X, Akansu A N. Multicarrier CDMA systems with transmit diversity. Proc of VTC2000(fall), Boston, USA, September 2000: 2817.2821.[5]Auffray J M, Hlard J F. Performance of multicarrier CDMA technique combined with space-time block coding over Rayleigh channel. Proc. of IEEE ISSSTA, Prague, Czech Republic, Sept. 2002: 348.352.[6]Wei S, Li H, Amin M. MMSE detection for space-time coded MC-CDMA. Proc. of ICC2003, Anchorage, AK, USA, May 2003: 3452.3456.[7]Pados D A, Batalama S N. Joint space-time auxiliary-vector filtering for DS/CDMA systems with antenna arrays. IEEE Trans. on Commun., 1999, 47(9): 14061415. .[8]Li X, Fan H. Blind channel identification: subspace tracking method without rank estimation[J].IEEE Trans. on Sig. Proc.2001, 49(10):2372-[9]CHOI J. Channel estimation for coherent multi-carrier CDMA systems over fast fading channels. Proc of IEEE VTC 2000(spring), Tokyo, Japan, May 2000: 400404. .[10]Luo F L, Unbehauen R. A minor subspace analysis algorithm[J].IEEE Trans. on Neural Networks.1997, 8(5):1149-
  • 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 (2013) PDF downloads(750) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return