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Selected Mapping without Side Information for PAPR Reduction in OFDM

Lookup NU author(s): Dr Stephane Le Goff, Salim Al-Sabah, Dr Boon Khoo, Professor Harris Tsimenidis, Professor Bayan Sharif

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Abstract

Selected mapping (SLM) is a technique used to reduce the peak-to-average power ratio (PAPR) in orthogonal frequency-division multiplexing (OFDM) systems. SLM requires the transmission of several side information bits for each data block, which results in some data rate loss. These bits must generally be channel-encoded because they are particularly critical to the error performance of the system. This increases the system complexity and transmission delay, and decreases the data rate even further. In this paper, we propose a novel SLM method for which no side information needs to be sent. By considering the example of several OFDM systems using either QPSK or 16-QAM modulation, we show that the proposed method performs very well both in terms of PAPR reduction and bit error rate at the receiver output provided that the number of subcarriers is large enough.

Publication metadata

Author(s): Le Goff SY, Al-Samahi SS, Khoo BK, Tsimenidis CC, Sharif BS

Publication type: Article

Publication status: Published

Journal: IEEE Transactions on Wireless Communications

Year: 2009

Volume: 8

Issue: 7

Pages: 3320-3325

Date deposited: 11/03/2010

ISSN (print): 1536-1276

ISSN (electronic): 1558-2248

Publisher: IEEE

URL: http://dx.doi.org/10.1109/TWC.2009.070463

DOI: 10.1109/TWC.2009.070463

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