Channel Estimation Analysis in MIMO OFDM System over Fading Channel
نویسنده
چکیده
Multiple Input Multiple Output-Orthogonal Frequency Division Multiplexing (MIMO-OFDM) systems play a vital role in the channel estimation. The wireless channel suffers from impairments like fading and interference. Technologies that achieved above requirements are Multiple Input Multiple Output (MIMO) and Orthogonal Frequency Division Multiplexing (OFDM). Channel impairments must be mitigated at the receiver by using channel estimation techniques. In this paper, BER performance improvements of MIMO-OFDM systems using different techniques such as Least Square (LS), Minimum mean square error (MMSE) are implemented and compared. Work is carried out in Mat lab under fading channels. Keywords—Channel Estimation, Least square (LS), Minimum Mean square error, MIMO-OFDM
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