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Communication Dans Un Congrès Année : 2008

Adaptive Detection for a Permutation-based Multiple-Access Scheme on Time-Varying Multipath Channels with Unknown Delays and Coefficients

Résumé

In this paper, a multiple-access transmission scheme based on random permutations is studied. This scheme provides both a spectrum spreading and a time spreading, combined with a chip interleaving. One considers asynchronous transmissions on frequency-selective and time-varying channels. It is assumed that the channel coeffcients are unknown by the receiver, and that only vague estimates of the minimum and maximum delays are available. In such a context, an LMS algorithm is used to solve the bit detection problem. Theoretical performance results are given. Moreover, this random permutation-based scheme is compared with the DS-CDMA system, for which an equivalent LMS detector is developed in the same context.
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Dates et versions

hal-03608795 , version 1 (15-03-2022)

Identifiants

  • HAL Id : hal-03608795 , version 1

Citer

Martial Coulon, Daniel Roviras. Adaptive Detection for a Permutation-based Multiple-Access Scheme on Time-Varying Multipath Channels with Unknown Delays and Coefficients. 16th European Signal and Image Processing Conference (EUSIPCO 2008), Aug 2008, Lausanne, Switzerland. pp.1-5. ⟨hal-03608795⟩
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