In the context of the 4 industrial revolution, the knowledge and management of the precise topological and geographical location of industrial equipment is a growing necessity. However, a holistic concept for topology and location management in processand factory automation networks down to the field level is yet unknown. In this work, existing network and location management mechanisms are sur...

Location management is one of the fundamental issues in cellular networks. It includes two operations: location update and paging. The goal of location management is to minimize the combined cost of these two operations. Recently a distance-based scheme using a pre-defined look-up table for location updates has been proposed. The table describes the relationship between the distance and the tim...

Spatial data are used for location based services and to support traffic management systems. Data are gathered, saved and managed in a central database where, in principal, every user can access them putting data in a temporary database and then integrate them to a central. The proposed system uses a connection between database and trust engines in order to provide transparency. Security is an ...

Geometric routing using source–destination locations has been suggested as a scalable alternative to conventional routing approaches in mobile ad hoc networks. Prior studies have shown that the location of a destination can be found efficiently in large/dense ad hoc networks using intelligent location management schemes by recruiting nodes in specific unit regions of the terrain as location ser...

The prompt availability of location information is very important in emergency situations (e.g. accidents, natural or technological disasters etc), when people need help immediately. The precise identification of the caller’s position in a mobile network is the foundation of rescue operations. The paper presents technical questions and some solutions in the context of determining and identifyin...

The major objective of the Service Oriented Computing Environment (SORCER) is to form dynamic federations of network services that provide shared data, applications, and tools on a service grid along with exertion-oriented programming. To meet the requirements of these services in terms of data sharing and managing in the form of data files, a corresponding federated file system was developed. ...

The universal mobile telecommunications system utilizes a three-level location-management strategy to reduce the net costs of location update and paging in the packet-switched service domain. Within a communication session, a mobile station (MS) is tracked at the cell level during packet transmission. In the idle period of an ongoing session, the MS is tracked at the UTRAN registration area (UR...

Consider a database that represents information about moving objects and their location. For example, for a database representing the location of taxi-cabs a typical query may be: retrieve the free cabs that are currently within 1 mile of 33 N. Michigan Ave., Chicago (to pick-up a customer); or for a trucking company database a typical query may be: retrieve the trucks that are currently within...

The mobility in mobile ad hoc networks is an application that uses location information of nodes in a network to identify present location of a node. Since we need to get better QOS, mobility management is considered scalable and dynamic compared to other QoS parameters in mobile ad hoc networks. Mobility management in mobile ad hoc networks are mainly motivated by the adoption of dynamic mobil...

Managing location information of mobile devices is a very much important task in mobile computing systems. In cellular network, coverage area is divided into cells. Everyday mobile companies try to accommodate more users by reducing size of cells. Location management is one of the most important and fundamental issue in mobile computing. When the user changes location, an update occurs. The mai...