Optimization of PAPR in MIMO - OFDM Using Partial Transmit Sequence and ACO For 5G Communication System

PAPR (Peak-to-Average Power Ratio) appears as a significant barrier to the successful utilization of MIMO-OFDM (Multiple-Input, Multiple-Output - Orthogonal Frequency-Division Multiplexing) in 5G communication. The maximum value of PAPR degrades the performance of the transmitted signal. The reduction of PAPR requires various techniques such as partial transmit sequence and many more methods. In this paper, a modified PTS (partial transmit sequence) with ant colony optimization is proposed. The modified PTS reduces the value of PAPR and enhances the performance of the communication system. The main objective of this paper is to reduce the value of bit error rate and enhances the transmission throughput. The proposed algorithms reduce the values of error and enhances the process. The optimized PTS is simulated in MATLAB software by using different modulation scheme for performance evaluation. The optimized PTS methods get better results instead of clipping and PTS.