Downloads: 121
Review Papers | Electronics & Communication Engineering | India | Volume 4 Issue 8, August 2015
Review on PAPR Reduction in OFDM Based System
Abstract: In recent time, the demand for multimedia data services has grown up rapidly. One of the most promising multi-carrier system, Orthogonal Frequency Division Multiplexing (OFDM) forms basis for all 4G wireless communication systems due to its large capacity to allow the number of subcarriers, high data rate and ubiquitous coverage with high mobility. OFDM is significantly affected by peak-to-average-power ratio (PAPR). Unfortunately, the high PAPR inherent to OFDM signal envelopes will occasionally drive high power amplifiers (HPAs) to operate in the nonlinear region of their characteristic curve. The nonlinearity of the HPA exhibits amplitude and phase distortions, which cause loss of orthogonality among the subcarriers, and hence, inter-carrier interference (ICI) is introduced in the transmitted signal. Not only that, high PAPR also leads to in-band distortion and out-of-band radiation. Different techniques are used to reduce the Peak to Average Power Ratio (PAPR) to increase the efficiency of the OFDM system. In this paper some of these important techniques are reviewed.
Keywords: PAPR OFDM
Edition: Volume 4 Issue 8, August 2015,
Pages: 794 - 799
Similar Articles with Keyword 'PAPR'
Downloads: 103
Review Papers, Electronics & Communication Engineering, India, Volume 4 Issue 2, February 2015
Pages: 1975 - 1977Power Reduction Using ACE and NN Schemes
Downloads: 103
Research Paper, Electronics & Communication Engineering, India, Volume 6 Issue 6, June 2017
Pages: 1928 - 1931Comparative Analysis of OFDM Systems based on PAPR Reduction for Cyclic Shifted Partial Transmit Sequence and Conventional Partial Transmit Sequence for Different Shift Values Using different Modulation Schemes
Harshita Soni | Gaurav Gupta [4]