Reduction of Papr in Mimo-Ofdm Using Adaptive SLM and PTS Technique

Abstract

This work will focus on performance comparison between two methods for combating the effects of PAPR: i.e. Selective Mapping (SLM) and Partial Transmit Sequence (PTS) method. These two methods are compared in terms of bandwidth efficiency and computation complexity with BER and PAPR reduction performance. This paper also describes the analysis and simulation of a modified SLM and PTS approach to decrease PAPR in MIMO-OFDM system. The basic principle of the coding technique known as STBC-OFDM is demonstrated through derivations and simulations. BER-analysis of MIMO-OFDM system using space-time block codes are simulated for Alamouti 2x1 system. The performance of the proposed system is better in terms of SNR as compared to systems with lower antenna configurations. In this work, the conjugate symbols were proposed, which have the same PA property. The proposed algorithm shows better PAPR performance and complexity reduction than the usual algorithms using the simulation results obtained.