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On DPSK demodulation of DS/CDMA signals

Karystinos Georgios, Pados Dimitrios

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URIhttp://purl.tuc.gr/dl/dias/828DA005-AE6A-4819-9924-C7A44C923AB1-
Identifierhttps://doi.org/10.1109/GLOCOM.1999.831749-
Languageen-
Extent5en
TitleOn DPSK demodulation of DS/CDMA signalsen
CreatorKarystinos Georgiosen
CreatorΚαρυστινος Γεωργιοςel
CreatorPados Dimitriosen
PublisherInstitute of Electrical and Electronics Engineersen
Content SummarySecond-order multipath channel estimation procedures for direct-sequence code-division-multiple-access (DS/CDMA) communications induce phase ambiguity that necessitates differential phase-shift-keying (DPSK) modulation and detection. The maximum likelihood (ML) single-symbol multiuser DPSK/CDMA detector is derived with direct generalization to multiple-symbol (block) multiuser DPSK/CDMA detection. Exponential complexity requirements limit the use of the ML rule to theoretical lower-bound bit error rate benchmarking. Linear filter DPSK demodulators are viewed as a practical alternative. Phase-ambiguous RAKE filtering and MVDR filtering (for active interference suppression) followed by filter-output differential detection are considered. Short-data-record adaptive alternatives to costly and slow adaptive MVDR implementations are sought in the context of auxiliary-vector (AV) filtering. Numerical and simulation studies illustrate the developments.en
Type of ItemΠλήρης Δημοσίευση σε Συνέδριοel
Type of ItemConference Full Paperen
Licensehttp://creativecommons.org/licenses/by-nc-nd/4.0/en
Date of Item2015-11-10-
Date of Publication1999-
Bibliographic CitationG. N. Karystinos and D. A. Pados, “On DPSK demodulation of DS/CDMA signals,” in Proc. IEEE ,Communication Theory Symposium,(GLOBECOM '99) Brazil, Dec. pp. 2487-2492 doi: 10.1109/GLOCOM.1999.831749 en

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