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Complete Complementary Orthogonal (CCO) Code-Based CDMA Using Natural Mapping QAM Constellations

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Abstract

In this short paper we propose a CCO code-based CDMA system that uses a natural mapping QAM scheme, in order to conserve both bandwidth and average transmitted power. We also suggest a design approach to obtain an optimal QAM mapping to further improve system performance. This is in contrast to the original CCO code-based system which used PAM transmission over twice as many channels. Here we present preliminary results for the 2-user case and the downlink.

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Authors and Affiliations

  1. School of Electrical Engineering and Computer Science, Oregon State University, Corvallis, Oregon, USA

    Mario E. Magaña & Thunyawat Rajatasereekul

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  1. Mario E. Magaña
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  2. Thunyawat Rajatasereekul
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Magaña, M.E., Rajatasereekul, T. Complete Complementary Orthogonal (CCO) Code-Based CDMA Using Natural Mapping QAM Constellations. Wireless Pers Commun 38, 435–442 (2006). https://doi.org/10.1007/s11277-006-9053-6

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  • DOI: https://doi.org/10.1007/s11277-006-9053-6

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