A Robust Peak-to-Average Power Ratio Reduction Scheme by Inserting Dummy Signals with Enhanced Partial Transmit Sequence in OFDM Systems

Authors:
Pooria Varahram;Somayeh Mohammady;Borhanuddin Mohd Ali
Affiliations:
Computer and Communication Engineering Department, University Putra Malaysia, Serdang, Malaysia 43400;Electrical Engineering Department, University Putra Malaysia, Serdang, Malaysia 43400;Computer and Communication Engineering Department, University Putra Malaysia, Serdang, Malaysia 43400
Venue:
Wireless Personal Communications: An International Journal
Year:
2013

Citing 6
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An overview of peak-to-average power ratio reduction techniques for multicarrier transmission

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Peak-to-average power ratio reduction and digital predistortion effects in power amplifiers in OFDM system

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A low complexity partial transmit sequence scheme by use of dummy signals for PAPR reduction in OFDM systems

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Abstract

Peak-to-average power ratio (PAPR) is one of the main drawbacks in orthogonal frequency division multiplexing (OFDM) systems. High PAPR forces the power amplifier to back off in order to operate in its linear region, which degrades the power efficiency of the system. Several PAPR reduction techniques have been developed, but most of them have not considered both complexity and PAPR reduction. In this paper, a novel PAPR reduction scheme based on the insertion of dummy sequences to an enhanced partial transmit sequence is proposed. By applying this scheme the PAPR performance is enhanced compared to the conventional methods while the complexity is significantly reduced. Numerical analysis is carried out with OFDM signal and QPSK modulation.