American Journal of Applied Sciences

Peak to Average Power Ratio Reduction of Orthogonal Frequency Division Multiplexing System with a Significant Low Complexity

Montadar Abas Taher, J. S. Mandeep, Mahamod Ismail and M. T. Islam

DOI : 10.3844/ajassp.2012.1985.1989

American Journal of Applied Sciences

Volume 9, Issue 12

Pages 1985-1989

Abstract

The Orthogonal Frequency Division Multiplexing (OFDM) has been widely used in many applications in the last decade. It provides good benefits compared to the single carrier systems. However, it has a bad property represented by the high-output Peak to Average Power Ratio (PAPR) which is considered as its major problem. There are many techniques to reduce the PAPR values such as the best one called Selected Mapping (SLM) method. In this study, a novel technique has been used to reduce the PAPR and it depends on a cascade of Inverse Fast Fourier Transform (IFFT). The analysis proved that the computational complexity has been reduced significantly and the simulation results showed that the PAPR reduced also without affecting the Bit Error Rate (BER).

Copyright

© 2012 Montadar Abas Taher, J. S. Mandeep, Mahamod Ismail and M. T. Islam. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.