BER of MIMO-OFDM Systems with Carrier Frequency Offset and Channel Estimation Errors

Performance analysis of multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) systems with carrier frequency offset and channel estimation errors is considered in this paper. Based on the analysis of the inter-carrier-interference (ICI) and inter-antenna-interference (IAI) due to the residual frequency offsets, the average signal-to-interference-and-noise ratio (SINR) is derived. The bit error rate of equal gain combining (EGC) and maximal ratio combining (MRC) with MIMO-OFDM is analyzed, and an infinite-series approximation for the bit error rate is derived. Simulation results illustrate the accuracy of the theoretical analysis.

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

[2]  Chintha Tellambura,et al.  Maximum-likelihood carrier frequency offset estimation for OFDM systems over frequency-selective fading channels , 2005, IEEE International Conference on Communications, 2005. ICC 2005. 2005.

[3]  Luca Rugini,et al.  BER of OFDM systems impaired by carrier frequency offset in multipath fading channels , 2005, IEEE Transactions on Wireless Communications.

[4]  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).

[5]  Hlaing Minn,et al.  Optimal training signals for MIMO OFDM channel estimation , 2006, IEEE Trans. Wirel. Commun..

[6]  Khaled Ben Letaief,et al.  A robust timing and frequency synchronization for OFDM systems , 2003, IEEE Trans. Wirel. Commun..

[7]  Petre Stoica,et al.  On parameter estimation of MIMO flat-fading channels with frequency offsets , 2003, IEEE Trans. Signal Process..

[8]  Donald C. Cox,et al.  Robust frequency and timing synchronization for OFDM , 1997, IEEE Trans. Commun..

[9]  Gordon L. Stüber,et al.  Synchronization for MIMO OFDM systems , 2001, GLOBECOM'01. IEEE Global Telecommunications Conference (Cat. No.01CH37270).

[10]  Tao Cui,et al.  Robust joint frequency offset and channel estimation for OFDM systems , 2004, IEEE 60th Vehicular Technology Conference, 2004. VTC2004-Fall. 2004.

[11]  Georgios B. Giannakis,et al.  Frequency offset and symbol timing recovery in flat-fading channels: a cyclostationary approach , 1998, IEEE Trans. Commun..

[12]  Paul H. Moose,et al.  A technique for orthogonal frequency division multiplexing frequency offset correction , 1994, IEEE Trans. Commun..