For mobile agents roaming in a network, location management strategies still represent a current research issue, for contacting and communicating with these agents. The cost of a location management strategy mainly depends on the cost of location search and update. In order to save this cost, mobile agents should not update their location every time they change the host. This paper discusses th...

Location management is one of the most important issues in distributed mobile computing. Location management consists of location updates, searches and search-updates. An update occurs when a mobile host changes location. A search occurs when a host wants to communicate with a mobile host whose location is unknown to the requesting host. A search-update occurs after a successful search, when th...

During an off-peak hour of a day, a Mobile Terminal (MT) can stay in idle mode for long time as there is no incoming or outgoing packet. An idle MT can move from one location to another and the wireless access network keeps tracking the idle MT. Idle MTs need to assist the wireless access network for location update; so that, on call arrival the network can route the call successfully. Mean whi...

Location management is a fundamental problem in mobile computing systems. Existing industry standards employ centralized location management schemes. Centralized schemes are not highly scalable. This paper presents a new, distributed location management strategy for mobile systems. Its salient features are fast location update and query, load balancing among location servers, and scalability. T...

Location management is one of the most important issues in mobile computing. Location management consists of location updates, searches and search-updates. An update occurs when a mobile host changes location. A search occurs when a host wants to communicate with a mobile host whose location is unknown to the requesting host. A search-update occurs after a successful search, when the location i...

Advances in wireless sensors and position technologies such as GPS enable location-based services that rely on the tracking of continuously changing positions of moving objects. The key issue in tracking techniques is how to minimize the number of updates, while providing accurate locations for query results. In this paper, for tracking networkconstrained moving objects, we first propose a simu...

With the rapid increase in international roaming and highly growing number of cellular subscribers it is important to locate the subscriber both efficiently and accurately not only to reduce the cost but also to decrease the load on MSC and decrease the paging delay. The procedure used by the service provider for both collecting and analyzing the information regarding the subscribers’ location ...

Mobile location management is one of the most important problems in the mobile networks systems. Indeed, reducing the search cost increases the update cost and vice versa. That's why, a trade off between the search cost and update cost must be defined. This paper proposes a location management scheme based on quorums. The communication cost is reduced with our method because the information on ...

In this paper, we propose a location management strategy that minimizes the radio bandwidth cost for paging and location update. The proposed strategy uses the concept of multilayer and is based on the timer-initiated location update and 3-step paging. The system assigns an optimal layer number to a mobile terminal according to the user’s mobility pattern and call arrival rate. The mobile termi...