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A New SLM Scheme with Clipping For PAPR Reduction in OFDM Systems

Author(s):

Patel Chinkalkumar B , U.V.Patel college of engineering, ganpat university, Kherva.

Keywords:

Orthogonal Frequency Division Multiplexing (OFDM), Peak to Average Power Ration (PAPR), Selective Mapping (SLM), Clipping, Bit Error Rate (BER)

Abstract

Orthogonal Frequency Division Multiplexing (OFDM) has become the most widely adopted technology in wireless communication systems. Usage of OFDM is limited mainly by its high Peak-to-Average Power Ratio (PAPR). Selected mapping (SLM) is well-known technique for peak-power reduction in orthogonal frequency-division multiplexing (OFDM). Proposed technique is modified SLM scheme. SLM is applied for peak to average power ratio (PAPR) reduction in orthogonal frequency division multiplexing (OFDM) systems. The output of modified technique is clipped at transmitter end and the out grown clipped signal is also passed through channel with original clipped signal and then they are added for further processing at receiver end. PAPR reduction is achieved with reasonably good BER with this hybrid technology.

Other Details

Paper ID: IJSRDV3I2642
Published in: Volume : 3, Issue : 2
Publication Date: 01/05/2015
Page(s): 1114-1117

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