Implementation of UWB-OFDM Fixed Point Model Using PAPR-Clipping Technique with Frequency Hopping Filtering Technique

Abstract: In a communication system, operation of the transmitter power amplifier is limited to linear range. Input signal with an amplitude more than the transmitter power amplifier linear range results in signal distortion. Hence, the input signal to the transmitter should be with low peak to average power ratio. This paper presents a PAPR reduced UWB (ultra wide band) model using clipping Technique and Frequency Hopping Filtering. Due this model we evaluated the low PAPR, Increased signal efficiency and by low Bit error rate. Frequency hopping to decrease channel fading and Inter Symbol Interference.

Keywords: Convolution encoder, MB-OFDM system, UWB, Viterbi decoder.