Abstract
Orthogonal frequency division multiplexing (OFDM) can be combined with antenna arrays to increase a system competence on time variant with the frequency selective channels which cause a multiple input multiple output (MIMO) composition. The main disadvantage of MIMO-OFDM is its high peak average power ratio (PAPR). In this paper, a hybrid technique of constant modulus algorithm (CMA) with Clipping is proposed for PAPR reduction. The proposed technique is not only improving PAPR but also improving BER. Moreover, a design of four elements UWB MIMO which satisfies the bandwidth from 3.1 to 10.6 GHz for OFDM wireless ultra-wideband (UWB) applications with a compensated channel is proposed. The performance of BER by using Rayleigh fading channel and practical channel model is improved. It has been observed that the proposed system has a better performance for PAPR and BER.
Published Version
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