Abstract: Orthogonal frequency-division multiplexing (OFDM) is an orthogonal waveform technique for encoding digital data on multiple carrier frequencies. OFDM has developed into a popular scheme for wide band digital communication, used in applications such as wireless networks and 4G mobile communications such as LTE, WIMAX and Wifi. It still exists with some of the drawbacks, out of which, high peak to average power ratio (PAPR) gives rise to non-linear distortion, inter-symbol interference and out-of-band radiation. There has been various ways developed and implemented to reduce PAPR. we will describe all of these techniques to reduce PAPR, then focus on technique called Partial Transmit Sequence technique(PTS) which comes under Signal scrambling techniques. In this technique, the symbol in the frequency domain is partitioned into smaller disjoint sub-blocks. The objective is to design an optimal phase for the sub-block set that minimizes the PAPR. In this paper, an efficient Universal Software Radio Peripheral (USRP) implementation of PTS scheme for PAPR reduction OFDM signals using LABVIEW has been carried out.Abstract: Orthogonal frequency-division multiplexing (OFDM) is an orthogonal waveform technique for encoding digital data on multiple carrier frequencies. OFDM has developed into a popular scheme for wide band digital communication, used in applications such as wireless networks and 4G mobile communications such as LTE, WIMAX and Wifi. It still exists with s...Show More
