Interference in DS-CDMA systems with exponentially vanishing autocorrelations: Chaos-based spreading is optimal

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Interference in DS-CDMA systems with exponentially vanishing autocorrelations: Chaos-based spreading is optimal

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A novel estimation of the minimum achievable interference in direct sequence-code division multiple access (DS-CDMA) systems is introduced, which holds when spreading sequences with exponentially vanishing autocorrelation are employed. This can be applied to many of the recently proposed improvements to classical maximum-length or Gold sequences, such as chaos-based spreading. Asymptotic, infinite-bandwidth results are also provided, clarifying the maximum attainable gain. Empirical evidence shows that this theoretical maximum is achieved by some chaos-based sequences which are therefore optimal.

Inspec keywords: chaos; radiofrequency interference; code division multiple access; spread spectrum communication; correlation theory; sequences

Other keywords: chaos-based spreading; direct sequence CDMA; DS-CDMA systems; spreading sequences; maximum attainable gain; interference estimation; exponentially vanishing autocorrelations; code division multiple access

Subjects: Multiple access communication; Information theory; Electromagnetic compatibility and interference; Signal processing and detection; Radio links and equipment

References

    1. 1)
      • R. Rovatti , G. Setti , G. Mazzini . Chaotic complex spreading sequences for asynchronousDS-CDMA - Part I: Some theoretical performance bounds. IEEE Trans. , 496 - 506
    2. 2)
      • I.S. Gradshteyn , I.M. Ryzhik . (1994) Table of integrals, series, and products 5th Edn..
    3. 3)
      • Rovatti, R., Setti, G., Mazzini, G.: `Toward sequence optimization for chaos-basedasynchronous DS-CDMA systems', Proc. IEEE GLOBECOM'98, 1998, Sydney, Australia.
    4. 4)
      • G. Mazzini , G. Setti , R. Rovatti . Chaotic complex spreading sequences for asynchronousDS-CDMA - Part I: System modeling and results. IEEE Trans. , 937 - 947
    5. 5)
      • M.B. Pursley . Performance evaluation for phase-coded spread-spectrum multiple-accesscommunication - Part I: System analysis. IEEE Trans. , 795 - 799
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