A novel scheme of multicarrier modulation with the discrete cosine transform
Authors
Domínguez Jiménez, Maria Elena; Luengo, David; Sansigre Vidal, Gabriela; Cruz Roldán, FernandoIdentifiers
Permanent link (URI): http://hdl.handle.net/10017/50374DOI: 10.1109/TWC.2021.3089237
ISSN: 1536-1276
Publisher
IEEE
Date
2021-12-01Funders
Ministerio de Economía y Competitividad
Bibliographic citation
Dominguez-Jimenez, M.E., Luengo, D., Sansigre-Vidal, G. & Cruz-Roldan, F. 2021, "A novel scheme of multicarrier modulation with the discrete cosine transform", IEEE Transactions on Wireless Communications, vol. 20, no. 12, pp. 7992-8005.
Keywords
Multicarrier modulation
Discrete cosine transform (DCT)
Channel estimation
Signal reconstruction
Project
info:eu-repo/grantAgreement/MINECO//TEC2015-64835-C3-1-R/ES/TECNOLOGIAS DE CAPA FISICA FIABLES PARA COMUNICACIONES SOBRE REDES ELECTRICAS/
info:eu-repo/grantAgreement/MINECO//TEC2015-64835-C3-3-R/ES/TRANSFORMADAS TRIGONOMETRICAS DISCRETAS PARA COMUNICACIONES MIMO POR LA RED ELECTRICA/
Document type
info:eu-repo/semantics/article
Version
info:eu-repo/semantics/acceptedVersion
Publisher's version
https://doi.org/10.1109/TWC.2021.3089237Rights
Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
© 2021 IEEE
Access rights
info:eu-repo/semantics/openAccess
Abstract
In this work, we derive a novel multicarrier modulation based on the Type-I even discrete cosine transform (DCT1e), which includes new procedures to carry out both the channel estimation and the signal reconstruction. By using a small number of training symbols, we achieve an accurate estimation of the channel's impulse response (CIR) using a novel mirror, replicate and add (MIRA) procedure. The proposed scheme does not require knowing the length of the CIR and is valid even in the presence of spectral nones. We provide the theoretical results that guarantee the validity of the developed technique. After the estimation process, the transmitted symbols are also reconstructed by means of the DCT1e using the same novel MIRA scheme. The conditions that ensure a perfect reconstruction in the absence of noise are also provided in this case. Numerical simulations illustrate the excellent behaviour of the proposed approach, both in terms of channel estimation and recovery of the transmitted information.
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