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Efficient Design of Selective Mapping and Partial Transmit Sequence using T-OFDM

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.

Publication metadata

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


DOI: 10.1109/TVT.2019.2928361


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