Joint beamforming strategies in OFDM-MIMO systems

1 May 2002

proceedings article
Published by Institute of Electrical and Electronics Engineers (IEEE)

Vol. 3, III-2845-III-2848
https://doi.org/10.1109/icassp.2002.5745241

Abstract

Orthogonal Frequency Division Multiplexing (OFDM) has been recently established for several systems such as HIPERLAN/2 and Digital Video and Audio Broadcasting. The success of this modulation is due to the easy implementati9n of the modulator and demodulator, including the equalization process. Moreover, in last years also increasing interest has been put on the study of Multi-Input-Multi-Output (MIMO) channels, based on the use of arrays of antennas at both the transmitter and the receiver. In this paper we propose two new and low computational cost joint beamforming strategies for communication systems that combine OFDM and MIMO channels. An asymptotic analysis of the proposed methods is carried out, providing a complete comparative study among other classical strategies. To demonstrate the potential of the proposed techniques, we present MonteCarlo simulation results of the system BER and make comparisons with other methods.

Keywords

This publication has 2 references indexed in Scilit:

Adaptive antennas at the mobile and base stations in an OFDM/TDMA system
IEEE Transactions on Communications, 2001
On joint transmitter and receiver optimization for multiple-input-multiple-output (MIMO) transmission systems
IEEE Transactions on Communications, 1994