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Design of ODMA Digital Waveforms Using Non-Convex Optimization Methods

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  • Zhuquan Zang
  • Sven Nordholm

Abstract

This paper presents a new approach for the design of a set of orthogonal digital filters which can be used as message-carrying waveforms in orthogonality division multiple access (ODMA) communication systems. The filter set design problem is formulated as a constrained L 2 space optimization problem. For bandwidth efficiency, all the digital filters in the set are constrained to have approximately the same desired spectral shapes in a prescribed passband; To minimize intersymbol interference and co-channel interference, all the digital filters in the set are constrained to have low values of auto-correlation at nonzero translates of multiple symbol interval and low values of cross-correlation at all translates of multiple symbol interval. Methods for solving the proposed non-convex optimization problem are outlined. Numerical results are presented to illustrate the usefulness of the proposed method. Copyright Springer Science + Business Media, Inc. 2005

Suggested Citation

  • Zhuquan Zang & Sven Nordholm, 2005. "Design of ODMA Digital Waveforms Using Non-Convex Optimization Methods," Annals of Operations Research, Springer, vol. 133(1), pages 319-330, January.
    • Handle: RePEc:spr:annopr:v:133:y:2005:i:1:p:319-330:10.1007/s10479-004-5041-y
    DOI: 10.1007/s10479-004-5041-y
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