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EURASIP Journal on Advances in Signal Processing
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Generalized Multicarrier CDMA: Unification and Linear Equalization

EURASIP Journal on Advances in Signal Processing volume 2005, Article number: 613517 (2005) Cite this article

Abstract

Relying on block-symbol spreading and judicious design of user codes, this paper builds on the generalized multicarrier (GMC) quasisynchronous CDMA system that is capable of multiuser interference (MUI) elimination and intersymbol interference (ISI) suppression with guaranteed symbol recovery, regardless of the wireless frequency-selective channels. GMC-CDMA affords an all-digital unifying framework, which encompasses single-carrier and several multicarrier (MC) CDMA systems. Besides the unifying framework, it is shown that GMC-CDMA offers flexibility both in full load (maximum number of users allowed by the available bandwidth) and in reduced load settings. A novel blind channel estimation algorithm is also derived. Analytical evaluation and simulations illustrate the superior error performance and flexibility of uncoded GMC-CDMA over competing MC-CDMA alternatives especially in the presence of uplink multipath channels.

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Authors and Affiliations

  1. Department of Electrical and Computer Engineering, University of Minnesota, 200 Union Street SE, Minneapolis, MN, 55455, USA

    Georgios B. Giannakis & Paul A. Anghel

  2. Department of Electrical and Computer Engineering, Iowa State University, 2215 Coover Hall, Ames, IA, 50011, USA

    Zhengdao Wang

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  1. Georgios B. Giannakis
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  2. Paul A. Anghel
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  3. Zhengdao Wang
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Correspondence to Georgios B. Giannakis.

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Open Access This article is distributed under the terms of the Creative Commons Attribution 2.0 International License ( https://creativecommons.org/licenses/by/2.0 ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Giannakis, G.B., Anghel, P.A. & Wang, Z. Generalized Multicarrier CDMA: Unification and Linear Equalization. EURASIP J. Adv. Signal Process. 2005, 613517 (2005). https://doi.org/10.1155/ASP.2005.743

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  • DOI: https://doi.org/10.1155/ASP.2005.743

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