Adaptive PTS approach for reduction of peak-to-average power ratio of OFDM signal

Jayalath, Dhammika & Tellambura, Chintha (2000) Adaptive PTS approach for reduction of peak-to-average power ratio of OFDM signal. Electronics Letters, 36(14), pp. 1226-1228.


An adaptive partial transmit sequence (PTS) technique is presented for the reduction of the peak-to-average power ratio (PAP) of an orthogonal frequency division multiplexing (OFDM) signal. The main problem for PTS is how to minimise the number of iterations necessary for locating the optimal weighting factors (which increases exponentially with the number of sub-blocks). In the proposed adaptive PTS approach, the iterations are stopped once the PAP drops below a preset threshold. For an OFDM system with 256 subcarriers and QPSK data symbols, adaptive PTS reduces the 0.1% PAP by 4 dB, while PTS (non-adaptive) reduces it by 4.1 dB. The complexity of adaptive PTS is just 2% of that of PTS.

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ID Code: 13742
Item Type: Journal Article
Refereed: Yes
Additional URLs:
Keywords: OFDM, Peak Power Reduction, PAPR
ISSN: 0013-5194
Subjects: Australian and New Zealand Standard Research Classification > TECHNOLOGY (100000) > COMMUNICATIONS TECHNOLOGIES (100500) > Communications Technologies not elsewhere classified (100599)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Copyright Owner: Copyright 2000 IEEE
Copyright Statement: Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Deposited On: 12 Jun 2008 00:00
Last Modified: 10 Aug 2011 17:48

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