Optimized Companding Technique using Firefly Algorithm for PAPR Reduction in OFDM System

Abstract

The current trends in wireless industry are based on multi-carrier transmission technique such as Orthogonal Frequency Division Multiplexing (OFDM) which provides high data rates and is highly immune to frequency selective fading. However, OFDM is handicapped with a major problem of high peak-to-average power ratio (PAPR), which gives rise to non-linear distortion, inter-symbol interference and out-of-band radiation. Several PAPR reduction techniques have been devised over the last few decades in order to surpass this problem of PAPR. In this paper we have analysed the effectiveness of Companding technique which is optimized using Firefly algorithm for PAPR reduction and the simulation results are compared with other techniques proposed in literature.

Keywords: law, CCDF, Companding, Firefly algorithm, OFDM, PAPR, SLM

Cite this Article

Kratika Mittal, Rekha Gupta. Optimized Companding Technique using Firefly Algorithm for PAPR Reduction in OFDM System. Journal of Communication Engineering & Systems. 2015; 5(2): 21–27p.