Improved space-time coding for MIMO-OFDM wireless communications

Improved space-time coding for multiple-input multiple-output orthogonal frequency division multiplexing is studied for wireless systems using QPSK modulation for four transmit and four receive antennas. A 256-state code is shown to perform within 3 dB of outage capacity (and within 2 dB with perfect channel estimation), which is better than any other published result without using iterative decoding.

[1]  Jack H. Winters,et al.  On the Capacity of Radio Communication Systems with Diversity in a Rayleigh Fading Environment , 1987, IEEE J. Sel. Areas Commun..

[2]  Gerard J. Foschini,et al.  Layered space-time architecture for wireless communication in a fading environment when using multi-element antennas , 1996, Bell Labs Technical Journal.

[3]  A. Robert Calderbank,et al.  Space-time codes for high data rate wireless communication: performance criteria , 1997, Proceedings of ICC'97 - International Conference on Communications.

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

[5]  Geoffrey Ye Li,et al.  Robust channel estimation for OFDM systems with rapid dispersive fading channels , 1998, ICC '98. 1998 IEEE International Conference on Communications. Conference Record. Affiliated with SUPERCOMM'98 (Cat. No.98CH36220).

[6]  John M. Cioffi,et al.  Spatio-temporal coding for wireless communication , 1998, IEEE Trans. Commun..

[7]  Sirikiat Lek Ariyavisitakul,et al.  Channel estimation for OFDM systems with transmitter diversity in mobile wireless channels , 1999, IEEE J. Sel. Areas Commun..

[8]  Sirikiat Lek Ariyavisitakul,et al.  Turbo space-time processing to improve wireless channel capacity , 2000, IEEE Trans. Commun..

[9]  Rick S. Blum,et al.  Optimum space-time convolutional codes , 2000, 2000 IEEE Wireless Communications and Networking Conference. Conference Record (Cat. No.00TH8540).

[10]  Geoffrey Ye Li,et al.  Signal detection for MIMO-OFDM wireless communications , 2001, ICC 2001. IEEE International Conference on Communications. Conference Record (Cat. No.01CH37240).

[11]  Geoffrey Ye Li,et al.  MIMO-OFDM for wireless communications: signal detection with enhanced channel estimation , 2002, IEEE Trans. Commun..

[12]  Geoffrey Ye Li,et al.  Simplified channel estimation for OFDM systems with multiple transmit antennas , 2002, IEEE Trans. Wirel. Commun..

[13]  Rick S. Blum.  Some analytical tools for the design of space-time convolutional codes , 2002, IEEE Trans. Commun..