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Lookup NU author(s): Professor Said Boussakta
This is the authors' accepted manuscript of an article that has been published in its final definitive form by IEEE, 2020.
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Selective mapping (SLM) and partial transmit sequence (PTS) are attractive schemes for mitigating the high peak power inherent in orthogonal frequency division multiplexing (OFDM) signals. However, the high computational complexity and redundant side information (SI) bits have been identified as the main limitations for such techniques. The high computational complexity is mainly due to the need to perform several inverse fast Fourier transforms (IFFTs), and phase optimization process at the transmitter side. Therefore, this paper presents new SLM and PTS designs using a low complexity T-transform rather than IFFT. The use of the T-transform with SLM achieves a considerable computational complexity and peak-to-average power ratio (PAPR) reduction. Furthermore, we apply the T-transform to PTS and derive two different configurations that compromise the SI requirements and PAPR reduction. All the proposed schemes do not affect the original power spectrum of OFDM signals. The complexity analysis show that the proposed schemes have much lower complexity as compared to conventional schemes. Moreover, simulation results demonstrate that the proposed schemes are resilient to dispersion arising from multipath propagation, which is due to the frequency diversity introduced by the T-transform.
Author(s): Ahmed MS, Boussakta S, Al-Dweik AJ, Sharif B, Tsimenidis CC
Publication type: Article
Publication status: Published
Journal: IEEE Transactions on Vehicular Technology
Year: 2020
Volume: 69
Issue: 3
Pages: 2636-2648
Print publication date: 01/03/2020
Online publication date: 12/07/2019
Acceptance date: 08/07/2019
Date deposited: 24/09/2019
ISSN (print): 0018-9545
ISSN (electronic): 1939-9359
Publisher: IEEE
URL: https://doi.org/10.1109/TVT.2019.2928361
DOI: 10.1109/TVT.2019.2928361
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