QoS Equalization in a W-CDMA Cell Supporting Calls of Innite or Finite Sources with Interference Cancelation

• Autorzy: Moscholios I. D. , Kallos G. A. , Katsiva M. A. , Vassilakis V. G. , Logothetis M. D.
• Języki publikacji: EN

Abstrakty

EN

In this paper, a multirate loss model for the calculation of time and call congestion probabilities in a Wideband Code Division Multiple Access (W-CDMA) cell is considered. It utilizes the Bandwidth Reservation (BR) policy and supports calls generated by an infinite or finite number of users. The BR policy achieves QoS equalization by equalizing congestion probabilities among calls of dierent service-classes. In the proposed models a multiple access interference is considered, and the notion of local blocking, user's activity and interference cancelation. Although the analysis of the proposed models reveals that the steady state probabilities do not have a product form solution, the authors show that the calculation of time and call congestion probabilities can be based on approximate but recursive formulas, whose accuracy is verified through simulation and found to be quite satisfactory.

Słowa kluczowe

EN

bandwidth reservation; infinite sources; finite sources; recursive formula; time-call congestion probabilities; WCDMA

• Wydawca: Instytut Łączności - Państwowy Instytut Badawczy
• Czasopismo: Journal of Telecommunications and Information Technology
• Rocznik: 2014
• Tom: nr 3
• Strony: 63--70
• Opis fizyczny: Bibliogr. 34 poz., rys., tab.

Twórcy

autor

Moscholios I. D.

• Department of Informatics and Telecommunications, University of Peloponnese, Tripolis, Greece

autor

Kallos G. A.

• BT Technology, Service and Operations, Ipswich, U.K.

autor

Katsiva M. A.

• Department of Informatics and Telecommunications, University of Peloponnese, Tripolis, Greece

autor

Vassilakis V. G.

• Department of Electronic Engineering, University of Surrey, Guildford, U.K.

autor

Logothetis M. D.

• Department of Electrical and Computer Engineering, University of Patras, Patras, Greece

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