Performance analysis of CDMA-based networks with interference cancellation, for batched poisson traffic under the Bandwidth Reservation policy

Moscholios, Ioannis, Vassilakis, Vassilios, Kallos, Georgios and Logothetis, Michael (2015) Performance analysis of CDMA-based networks with interference cancellation, for batched poisson traffic under the Bandwidth Reservation policy. In: 13th International Conference on Telecommunications (ConTEL), 13-15 July 2015, Graz, Austria.

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Abstract

CDMA-based technologies deserve assiduous analysis and evaluation. We study the performance, at call-level, of a CDMA cell with interference cancellation capabilities, while assuming that the cell accommodates different service-classes of batched Poisson arriving calls. The partial batch blocking discipline is applied for Call Admission Control (CAC). To guarantee certain Quality of Service (QoS) for each service-class, the Bandwidth Reservation (BR) policy is incorporated in the CAC; i.e., a fraction of system resources is reserved for high-speed service-classes. We propose a new multirate loss model for the calculation of time and call congestion probabilities. The notion of local (soft) and hard blocking, users activity, interference cancellation, as well as the BR policy, are incorporated in the model. Although the steady state probabilities of the system do not have a product form solution, time and call congestion probabilities can be efficiently determined via approximate but recursive formulas. Simulation verified the high accuracy of the new formulas. We also show the consistency of the proposed model in respect of its parameters, while comparison of the proposed model with that of Poisson input shows its necessity.

Item Type: Conference or Workshop Item (Paper)
ISBN: 9781479989720
Identifier: 10.1109/ConTEL.2015.7231218
Additional Information: © 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Uncontrolled Keywords: Multiaccess communication, Noise, Interference, Integrated circuits, Bandwidth, Uplink, Probability
Subjects: Computing
Depositing User: Vasileios Vasilakis
Date Deposited: 05 Aug 2016 23:16
Last Modified: 26 Oct 2017 14:44
URI: http://repository.uwl.ac.uk/id/eprint/2820

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