Use of multiple antennas at the transmitter and receiver ends called as MIMO has become a very popular technique for improvement of data rates required by the current and future wireless networks. OFDM combined with MIMO is very attractive air interface in mobile and wireless communication scenario. Less complex and reliable channel estimation and detection techniques are required to take advantages offered by MIMO. In this thesis, channel estimation and detection techniques for MIMO and MIMO-OFDM system are studied. In MIMO-OFDM system, the received OFDM symbols can be processed in time domain or frequency domain. The numbers of channel estimation methods for OFDM and MIMO-OFDM system are studied. This research work has implemented a combined time and frequency domain approach to channel estimation for MIMO-OFDM.

MIMO-OFDM System, Channel Estimation Technique, Bit Error Rate, Mean Square Error

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