NDLI: PAPR reduction of coded OFDM signals based on iterative codeword construction

Content Provider	IEEE Xplore Digital Library
Author	Al-Askary, O.
Copyright Year	2004
Description	Author affiliation: Dept. of Signals, Sensors & Syst., Radio Commun. Group, Stockholm, Sweden (Al-Askary, O.)
Abstract	Orthogonal frequency division multiplexing (OFDM) allows transmission of data with high data rates over broadband radio channels without the need for powerful equalization. However, OFDM is sensitive to non-linearities in the system due to the high peak to average ratio (PAPR) in the transmitted signal. In this paper, we propose a simple method for reducing the PAPR in the OFDM signals using the well known BCH codes. The method relies on an iterative procedure to select a codeword that has a low PAPR from a translation of the code to another partition is loaded in the redundancy of the sent codeword and, therefore, no subcarriers are reserved for transmitting this information. The cost payed for this PAPR reduction is reduced error correction capability. Using this method, a reduction of the PAPR of up to 6 dB can be achieved with moderate complexity.
Sponsorship	IEEE IEEE Finland Section IEEE SP/CAS Chapter, Finland EURASIP UCSB Tampere Univ. of Technol. Ecole Superieure des Sciences et Techniques de Tunis, ESSTT, Univ. of Manouba
Starting Page	763
Ending Page	766
File Size	383613
Page Count	4
File Format	PDF
ISBN	0780383796
DOI	10.1109/ISCCSP.2004.1296525
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-03-21
Publisher Place	Tunisia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless communication Costs Filtering RF signals Redundancy Peak to average power ratio OFDM modulation Sensor systems Iterative methods Radio communication
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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