Publication No 27293

Author(s)

Schopp, M.*

Title

User Modelling and Performance Evaluation of Distributed Location Management for Personal Communications Services

Topics

Mobile Communications; Signalling

Methods

Performance Evaluation

Keywords

MOBILITY MANAGEMENT; MOBILITY MODEL; MOBILITY; PERSONAL COMMUNICATION; USER MODEL; PERFORMANCE EVALUATION; MOBILE RADIO; INTELLIGENT NETWORK; DISTRIBUTED SYSTEM; DISTRIBUTED DATABASE

Abstract

Personal Mobility has to be supported by efficient location management. Several strategies for tracking user locations have been proposed. The efficiency of these strategies very much depends on user behaviour. We present a user model which takes into account the mobility of a user as well as the traffic matrix of incoming calls. The mobility model does not only take into account the call-to-mobility ratio, but also the geographic distribution of user mobility. The traffic matrices of incoming calls are modelled depending on the current location and on the home location of the users involved in a call. A simple methodology is given which helps to evaluate different location management strategies in terms of signalling load, processing load in an Intelligent Network environment, query load to a distributed database and mean response times depending on different parameters of the user model. Finally, a case study is given which compares a GSM-like tracking strategy to a strategy which is based on a hierarchically distributed database.

Year

1997

Reference entry

Schopp, M.
User Modelling and Performance Evaluation of Distributed Location Management for Personal Communications Services
Proceedings of the 15th International Teletraffic Congress (ITC 15), Washington, D.C., June 1997, pp. 23-34

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