alexa Weight Rotation Technique for PAPR Reduction in OFDM
ISSN ONLINE(2278-8875) PRINT (2320-3765)

International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering
Open Access

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Research Article

Weight Rotation Technique for PAPR Reduction in OFDM

S.P.Vijayaragavan, R.Sakthivel, B.Karthik
  1. Assistant Professor, EEE Department, Bharath University, Chennai, India
  2. PG Student, EEE Department, Bharath University, Chennai, India
  3. Assistant Professor, ECE Department, Bharath University, Chennai, India
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Abstract

In this paper we propose Weight Rotation Technique for peak to- average power ratio (PAPR) reduction in OFDM systems. It is based on selected mapping (SLM) algorithm. The main drawback of the conventional SLM technique is its high signal processing complexity due to the use of multiple inverse fast Fourier transform (IFFT) operations per OFDM block. In the proposed PAPR reduction is based on a preset threshold value and the phase sequence is modified accordingly. Simulation results show that this technique gives a performance close to SLM technique with considerable reduction in complexity.

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