PAPR Reduction in MIMO OFDM System Using Improved Constant Modulus Algorithm


Author(s): Hemraj Kumawat, Kapil Kumawat

MIMO OFDM has gained importance with the increase in demand of high speed data communication .MIMO OFDM also qualifies 4G standard due to high bandwidth frequency. Despite of many merits MIMO OFDM suffers from high peak to average power ratio problem. This paper proposes a new technique based on continuous modulus algorithm to eliminate the problem of inter-carrier interference (ICI), high out-of-band radiation, and degradation of bit error rate performance. Proposed algorithms are simulated in matlab and parameters like bandwidth requirement and error is calculated. These parameters are compared with contemporary techniques to validate the proposed algorithm.