OFDM PAPR Reduction with Enhanced Filtering Methodology in Wireless Communication

Due to the advancement in wireless communication, multimedia based applications are growing and these applications require high speed data transmission. Accordingly, OFDM abbreviated as orthogonal frequency division multiplexing provides orthogonal subcarriers as well as uses bandwidth efficiently. With the number of increment of subcarriers in OFDM will increase Peak–to-Average Power Ratio which will cause distortion at the time of passing from non-linear amplifier [1]. There are several techniques that have been to reduce Peak–to-Average Power Ratio (PAPR) but still there is lot to work on it. Thus, proposed techniques are mentioned in this paper for the reduction of PAPR with the increment in the efficiency of the system. Experiments have been performed on the signal and results ensure that the performance of the proposed techniques is better than the existing one. In this paper a new approach for PAPR has been introduced. Proposed technique is known as hybrid technique. It is a combination of two techniques namely SLM and Companding respectively. SLM is a most preferable technique to reduce PAPR. Simulation is performed in MATLAB to prove the efficiency of proposed hybrid technique.