Subband adaptive array for STBC W-CDMA system

In this paper, presents interference suppression using a Space Time Block Coding-Subband Adaptive Array (STBC-SBAA) for uplink W-CDMA system over frequency selective fading channel is presented. The proposed scheme utilizes W-CDMA system with STBC and a receive array antenna with SBAA processing at the receiver. The received signal is converted into the frequency domain before de spreading and adaptive processing is performed for each subband. A novel SBAA construction is introduced to process W-CDMA signals based on STBC. To improve the performance of the proposed scheme, the evaluation is performed over STBC-SBAA using spreading codes. Simulation results demonstrate an improved performance of the proposed system for single and multiuser environments compared to competing related techniques.

[1]  Yoshio Karasawa,et al.  Subband adaptive array for multirate multicode DS-CDMA , 2003, 2003 IEEE Topical Conference on Wireless Communication Technology.

[2]  Rohit U. Nabar,et al.  Introduction to Space-Time Wireless Communications , 2003 .

[3]  Waleed Abdallah,et al.  Minimum Bit Error Rate beamforming combined with Space-Time Block Coding , 2011, 2011 International Conference on Communications and Information Technology (ICCIT).

[4]  Georgios B. Giannakis,et al.  Single-carrier space-time block-coded transmissions over frequency-selective fading channels , 2003, IEEE Trans. Inf. Theory.

[5]  M. J. Gans,et al.  On Limits of Wireless Communications in a Fading Environment when Using Multiple Antennas , 1998, Wirel. Pers. Commun..

[6]  Yoshio Karasawa,et al.  Subband adaptive array for MIMO-CDMA space-time block coded system , 2006, 2006 14th European Signal Processing Conference.

[7]  F. Adachi,et al.  Frequency-domain multi-stage MAI cancellation for DS-CDMA uplink with transmit/receive antenna diversity , 2005, VTC-2005-Fall. 2005 IEEE 62nd Vehicular Technology Conference, 2005..

[8]  Peter J. McLane,et al.  A fast adaptive algorithm for MMSE receivers in DS-CDMA systems , 2004, IEEE Signal Processing Letters.

[9]  Yoshio Karasawa,et al.  Subband Adaptive Array for MIMO-STBC CDMA System , 2007, IEICE Trans. Fundam. Electron. Commun. Comput. Sci..

[10]  R.M. Buehrer,et al.  Wireless communications: past events and a future perspective , 2002, IEEE Communications Magazine.

[11]  M. Frikel,et al.  BER analysis of parallel and successive interference cancellation employing MMSE equalizer for MC-CDMA systems , 2009, 2009 International Conference on Multimedia Computing and Systems.

[12]  Yoshio Karasawa,et al.  Asynchronous MIMO STBC Adaptive Array Transmission Scheme for Multiuser over Fast Fading Channel , 2008, IEICE Trans. Commun..

[13]  Ryuji Kohno.  Spatial and temporal communication theory using adaptive antenna array , 1998, IEEE Wirel. Commun..