Istituto di Scienza e Tecnologie dell'Informazione     
Lollini P., Bondavalli A., Di Giandomenico F., Porcarelli S. Model-based congestion analysis during outage and system reconfiguration in GPRS networks. The document has been submitted to Conference: IEEE International Symposium on Computers and Communications (ISCC 2004), Technical report, 2003.
This paper deals with congestion analysis of a simple GPRS network composed by two cells partially overlapping. In particular, we consider that one of the two cells is affected by an outage and we analyze the effectiveness of applying a class of congestion treatment techniques that ultimately results in a switching of users from the congested cell to the other one. For this purpose, we introduce a modelling technique to support a proper calibration of the parameters involved in a reconfiguration action, in order to successfully treat the congestion phenomenon. The effectiveness of a reconfiguration action is evaluated in terms of indicators that represent the Quality of Service (QoS) perceived by the users in the congested and adjacent cells.
Subject GPRS Networks
Model-based evaluation
C.2.3 Network Operations
C.2.1 Network Architecture and Design

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