Transmit and receive filter design for MIMO-OFDM based WiMAX systems

RRC (Root Raised Cosine) filters used in wireless communication as transmit and receive filters help in mitigating the lSI (Inter Symbol Interference). In this paper, the effect of root raised cosine pulse shaping filter with different roll off factors in a 2xl MIMO-OFDM system employing 256 sub carriers is analysed. In particular, the work focuses on the selection of quantization bits, truncation length and rolloff factors in a practical WiMAX system. BER analysis at different rolloff factors is presented. To evaluate the performance of the proposed design, simulations were carried out in Matlab-Simulink.