PERFORMANCE EVALUATION OF CI-VOFDM FOR PAPR REDUCING

Abstract

High Pick to Average Power Ratio (PAPR) contributes to increasing in complexity of the Analog to Digital Converter (ADC) and the Digital to Analog Converter (DAC), as a result, it reduced efficiency of the High Power Amplifier (HPA) and degradation of orthogonal frequency division multiplexing (OFDM) system performance. In this paper, the carrier interferometry (CI) spreading code in Vector OFDM (V-OFDM) to reduce the PAPR value is proposed. The simulation shows that the PAPR value decreases in CI-V OFDM systems compare to the conventional OFDM system.