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Performance analysis of MIMO-OFDM systems with adaptive beamformer  

Kim, Chan-Kyu (Department of Electronics Engineering, Hanbat University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.44, no.9, 2007 , pp. 1-8 More about this Journal
Abstract
In this paper, the new beamforming is proposed for an orthogonal frequency division multiplexing(OFDM) system with multi-input multi-output(MIMO). Through the proposed Pre-FFT beamforming technique for MIMO-OFDM, the multibeams are formed toward each multi-transmitter antenna of the desired user. The proposed beamforming for MIMO-OFDM can reduce cochannel interference and get diversity gain in the multi-user environment. Therefore, the performance of MIMO-OFDM system is very improved. BER performance improvement of the proposed approach is investigated through computer simulation by applying it to MIMO-OFDM system in the multi-user environment.
Keywords
OFDM; MIMO; Beamforming; Space-Time Coding;
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