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

Pooria Varahram, Borhanuddin M. Ali, Somayeh Mohammady, Nasri B. Sulaiman

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

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.

Original languageEnglish
Title of host publication2014 IEEE International Conference on Consumer Electronics, ICCE 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages29-30
Number of pages2
ISBN (Print)9781479912919
DOIs
Publication statusPublished - 2014
Externally publishedYes
Event2014 IEEE International Conference on Consumer Electronics, ICCE 2014 - Las Vegas, NV, United States
Duration: 10 Jan 201413 Jan 2014

Publication series

NameDigest of Technical Papers - IEEE International Conference on Consumer Electronics
ISSN (Print)0747-668X

Conference

Conference2014 IEEE International Conference on Consumer Electronics, ICCE 2014
Country/TerritoryUnited States
CityLas Vegas, NV
Period10/01/1413/01/14

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