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A recursive optimum frequency domain matrix to reduce crest factor in OFDM systems


Varahram, Pooria and Mohd Ali, Borhanuddin and Mohammady, Somayeh and Sulaiman, Nasri (2014) A recursive optimum frequency domain matrix to reduce crest factor in OFDM systems. In: 2014 IEEE International Conference on Consumer Electronics (ICCE), 10-13 Jan. 2014, Las Vegas, USA. (pp. 29-30).


One of the main imperfections in orthogonal frequency division multiplexing (OFDM) technique is a peak-to-average power ratio (PAPR) or crest factor (CF). High crest factor signal forces a power amplifier in communication systems to back-off which leads to power efficiency degradation. Several techniques have been proposed in literature to mitigate the high peaks in OFDM signal; however most of them suffer from complexity and PAPR performance. In this paper a novel crest factor scheme based on recursive optimum frequency domain matrix is proposed which requires only two IFFT which results in significant reduction in the computational complexity. Simulation results show both the complexity and crest factor are reduced significantly compared to the conventional methods.

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Additional Metadata

Item Type: Conference or Workshop Item (Paper)
Divisions: Faculty of Engineering
DOI Number: https://doi.org/10.1109/ICCE.2014.6775895
Publisher: IEEE (IEEEXplore)
Keywords: OFDM modulation; Matrix algebra; Radiocommunication
Depositing User: Nursyafinaz Mohd Noh
Date Deposited: 28 Oct 2015 04:28
Last Modified: 28 Oct 2015 04:28
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1109/ICCE.2014.6775895
URI: http://psasir.upm.edu.my/id/eprint/41156
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