Low-complexity LSMR equalisation of FrFT-based multicarrier systems in doubly dispersive channels
Solyman, Ahmed A. A. and Weiss, Stephan and Soraghan, John J.; (2011) Low-complexity LSMR equalisation of FrFT-based multicarrier systems in doubly dispersive channels. In: IEEE International Symposium on Signal Processing and Information Technology (ISSPIT), 2011. IEEE, ESP, pp. 461-465. ISBN 9781467307529 (https://doi.org/10.1109/ISSPIT.2011.6151606)
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The discrete fractional Fourier transform (FrFT) has been suggested to enhance performance over DFT-based multicarrier systems when transmitting over doubly-dispersive channels. In this paper, we propose a novel low-complexity equaliser for inter-symbol and inter-carrier interference arising in such multicarrier transmission system. Due to a lower spreading in the FrFT-domain compared to the DFTchannel matrix as compared to the DFT domain, the equaliser cam approximate the fractional-domain channel matrix by a band matrix. Further, we utilise the least squares minres (LSMR) algorithm in the calculation of the equalisation, which exhibits attractive numerical properties and low complexity. Simulation results demonstrate the superior performance of the proposed LSMR equaliser over benchmark schemes.
ORCID iDs
Solyman, Ahmed A. A., Weiss, Stephan ORCID: https://orcid.org/0000-0002-3486-7206 and Soraghan, John J. ORCID: https://orcid.org/0000-0003-4418-7391;-
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Item type: Book Section ID code: 40943 Dates: DateEvent17 December 2011PublishedSubjects: Technology > Electrical engineering. Electronics Nuclear engineering Department: Faculty of Engineering > Electronic and Electrical Engineering
Technology and Innovation Centre > Sensors and Asset ManagementDepositing user: Pure Administrator Date deposited: 21 Aug 2012 15:13 Last modified: 11 Nov 2024 14:49 Related URLs: URI: https://strathprints.strath.ac.uk/id/eprint/40943