Location management schemes presented in the personal communication network standards (e.g., EIA/TIA Interim Standard 41 (IS-41)) are not eecient. We propose forwarding techniques that augment the IS-41 scheme to provide eecient location management. We develop analytical models to compare the performance of the proposed approach with the IS-41 scheme. Analysis shows that forwarding signiicantly...

Location information is commonly used in context-aware applications and pervasive systems. These applications and systems may require knowledge of the location of users, devices and services. This paper presents a location management system able to gather, process and manage location information from a variety of physical and virtual location sensors. The system scales to the complexity of cont...

Within the scope of the research project NEXUS that is being worked on at the University of Stuttgart in cooperation between the Institute for Photogrammetry, the Institute of Parallel and Distributed High-Performance Systems and the Institute of Communication Networks and Computer Engineering, a generic platform supporting location aware applications with mobile users will be developed. In ord...

This paper proposes a new proactive mobility management mechanism. Instead of traditional mobility management system that when a user wants to connect another it needs to lookup the current location of the called user from the remote home location register (HLR) of the called user, the proposed method provides a special proactive location service to the close friends, who satisfy certain charac...

IP mobility can be handled at different layers of the protocol stack. Mobile IP has been developed to handle mobility of Internet hosts at the network layer. As an alternative solution, a number of transport layer mobility protocols have been proposed, for example, MSOCKS and TCP connection migration solution in the context of TCP, and M-SCTP and mobile SCTP in the context of SCTP. More recentl...

The urgency for service differentiation, customisation and personalisation in the market of 3G mobile services and applications has boosted the activities of many standards groups and Telecommunication companies and institutions to introduce advanced frameworks and architectures for the support of flexible service provision. Important feature in such architectures is the location information ma...

| This paper presents a realistic modeling framework for evaluating the performance of location management schemes in PCS networks. The framework captures complex human behaviors and has been validated through analysis of actual call and mobility data. Simulation results, showing the performance of IS-41, are presented.

We propose a location-service to assist location-based routing protocols, realised through our Associativity-Based Clustering protocol. The main goal of our scheme, which employs hierarchical principles, is to minimize the control traffic associated with location-management. In location-based routing protocols, the control traffic is mainly due to location-updates, queries and responses. Our sc...

Cellular communication allows subscribers to make and receive calls from anywhere. In the USA, cellular communication was fi rst deployed at the 800MHz band. In order to accommodate more subscribers, the FCC (Federal Communications Commission) allocated the 1900MHz band for PCSs. PCS uses a cellular network as its infrastructure. In a cellular network, a service coverage area is divided into sm...

− Location Management is the procedure of keeping track of and locating Mobile Terminals (MT’s) in mobile radio communication system so that calls arriving for them can be routed correctly to their current location. The main aim of the Location Management is to track the MT’s using minimum overhead traffic. Since the radio bandwidth is a scarce resource in mobile radio communication systems, it...