Investigation of Optimum Phase Sequence for Reduction of PAPR Using SLM in OFDM System

Pyla, Srinu; Raju, K. Padma; Balasubrahmanyam, N.

doi:10.1007/978-81-322-2728-1_23

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2017

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“…OFDM signal's spectral efficiency is increased significantly by separating the bandwidth into subchannels [1][2]. It is appropriate for all types of wireless data broadcast, because of its significance towards frequency selective fading channel.…”

Section: Introductionmentioning

confidence: 99%

Improved PTS Technique Based on Sub-Block Weighting Method of PAPR Reduction in OFDM Signals

Kumar¹,

Babu²,

Krishna³

2017

IJIES

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Abstract:The techniques to achieve Peak-to-Average Power Ratio (PAPR) minimization in Orthogonal Frequency Division Multiplexing (OFDM) signals, has brought more interest among the researchers in recent days. Among various methods for PAPR reduction, the Partial Transmit Sequence (PTS) and Selected Mapping (SLM) has derived successful reduction and improvement compared to other methods. However, it requires a large complexity for obtaining a kind of good performance in PAPR minimization. Thus, it is continuously being revised and improved by the researchers to provide better results. This paper focus on the same motivation mentioned above. It includes an improved PTS with the help of new Sub-block Weighting (SW) method. The improved PTS is combined with SLM technique for diminishing the computational intricacy for OFDM system. Simulation and experimental outcome confirms that the proposed method shows a superior outcome in terms of Complementary Cumulative Distribution Function (CCDF) compared to previous schemes.

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Section: Introductionmentioning

confidence: 99%