Channel estimation in space time block coded MIMO–OFDM system: a review

This paper explores the opportunity in the direction of channel estimation in space time block coded orthogonal frequency-division multiplexing (OFDM) and multiple inputs and multiple outputs (MIMO) system. In this paper several aspects have been analysed and considered for the study. The main parameters analysed are the modulation scheme, channel capacity, channel variations and bit error rate (BER) impact. This study explores various aspects in the previous literature including the method, results and gaps. This study provides a way to explore the opportunity to extend the research work in the direction of improving the performance based on the parameter discussed.