NDLI: PAPR reduction of OFDM signals using a reduced complexity PTS technique

Content Provider	IEEE Xplore Digital Library
Author	Seung Hee Han Jae Hong Lee
Copyright Year	1994
Abstract	A major drawback of orthogonal frequency division multiplexing (OFDM) is the high peak-to-average power ratio (PAPR) of the transmitted signal. Partial transmit sequence (PTS) technique can improve the PAPR statistics of OFDM signals. In the PTS technique, the data block to be transmitted is partitioned into disjoint subblocks and the subblocks are combined using phase factors to minimize PAPR. As ordinary PTS technique requires an exhaustive search over all combinations of allowed phase factors, the search complexity increases exponentially with the number of subblocks. In the proposed technique, a gradient descent search is performed to find the phase factors. It is shown that the proposed technique achieves significant reduction in search complexity with little performance degradation.
Sponsorship	IEEE Signal Processing Society
Starting Page	887
Ending Page	890
Page Count	4
File Size	210269
File Format	PDF
ISSN	10709908
Volume Number	11
Issue Number	11
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-11-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Peak to average power ratio OFDM Partial transmit sequences Statistics Signal processing Signal processing algorithms Iterative algorithms High power amplifiers Block codes Degradation
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Signal Processing Electrical and Electronic Engineering

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