Min-SER space-time equalization in asynchronous MIMO-OFDM systems

In this paper, we propose an algorithm for the design of space-time equalizer in asynchronous MIMO-OFDM systems. The equalizer is designed to null the co-channel interference and combat asynchronism as well as minimize a lower bound to the symbol error rate. Numerical simulations show good uncoded bit error rate performance for our proposed algorithm.

[1]  Dongweon Yoon,et al.  On the general BER expression of one- and two-dimensional amplitude modulations , 2002, IEEE Trans. Commun..

[2]  Frederick W. Vook,et al.  Asynchronous interference suppression in broadband cyclic-prefix communications , 2003, 2003 IEEE Wireless Communications and Networking, 2003. WCNC 2003..

[3]  R.W. Heath,et al.  Joint frequency offset estimation and interference cancellation for MIMO-OFDM systems [mobile radio] , 2004, IEEE 60th Vehicular Technology Conference, 2004. VTC2004-Fall. 2004.

[4]  M.D. Zoltowski,et al.  Space-time equalization and interference cancellation for MIMO OFDM , 2002, Conference Record of the Thirty-Sixth Asilomar Conference on Signals, Systems and Computers, 2002..

[5]  Zhi-Quan Luo,et al.  Minimum BER block precoders for zero-forcing equalization , 2002, 2002 IEEE International Conference on Acoustics, Speech, and Signal Processing.

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

[7]  Zhi-Quan Luo,et al.  Minimum BER block precoders for zero-forcing equalization , 2002, ICASSP.

[8]  Jean Armstrong,et al.  Analysis of new and existing methods of reducing intercarrier interference due to carrier frequency offset in OFDM , 1999, IEEE Trans. Commun..

[9]  David Gesbert,et al.  From theory to practice: an overview of MIMO space-time coded wireless systems , 2003, IEEE J. Sel. Areas Commun..