Location management plays the central role in providing ubiquitous communications services in the future wireless mobile networks. Location update and paging are commonly used in tracking mobile users on the move, location update is to update a mobile user’s current location while the paging is used to locate a mobile user, both will incur signaling traffic in the wireless networks. The more fr...

Location management schemes continue to be a topic of major research. Especially with the upcoming 3G, 4G and wireless LAN technologies, which will bring better services to the mobile users, it is anticipated that the mobile user population would continue to increase. Location management schemes comprise of location update and paging procedures. Efforts to introduce an efficient location update...

A new location update strategy for personal communication services (PCS) networks and its implementation using a genetic algorithm are proposed. Most of the practical cellular mobile systems partition a geographical region into location areas (LAs) and users are made to update on entering a new LA. The main drawback of this scheme is that it does not consider the individual user mobility and ca...

In PCS networks, new calls to a portable may be lost due to incorrect location information (due to either data corruption or outdated records) in the home location register mobility database. Such database failures can be recovered through the portable's registration when it initiates a call, through required registration (or deregistration for some systems) as it crosses the location area boun...

An important aspect of location-aware services is the management of location information. To this end, location information needs to be transferred from a mobile device, which determines this information by means of a local positioning sensor (such as GPS), to a location service, where the location information can be queried by applications. Because bandwidth in wide area mobile communications ...

The growth of cellular users using to communicate at any place and any time increases the signaling activities among the cellular networks. To reduce the network costs and better usage of radio resources, an efficient location management scheme: location updating and paging strategies are essential to improve the network performance. This paper presents a mixed location management strategy that...

The user mobility pattern (UMP) scheme is introduced for location update and paging in wireless systems where mobile terminals (MTs) maintain their history data in a database called user mobility history (UMH). During a location update, a UMP is derived from UMH and registered to the network. Unless the MT detects that it has moved out of the registered UMP, it does not perform any other locati...

Tracking the moving objects in high traffic environment is really a complex task. For location tracking system Spatial Data values are used. The information regarding the location of the objects is maintained by Database Server. To process Spatial Query values the application server is used. Location update is the highly bandwidth and resource constrained operation in the moving object tracking...

Locating users as they move from one place to another in a cellular network is a key issue that allows unrestricted mobility, yet poses several challenging constraints to the network designers. In this paper, an enhanced adaptive location update scheme is proposed to decrease the total cost of the location management process. The proposed scheme relies on the deployment of a direction based loc...

An important issue in the design of a mobile computing system is how to manage the real-time locations of mobile clients. In the existing commercial cellular mobile computing systems, a two-tier architecture is used. However, the two-tier architecture is not scalable and is not suitable to the new mobile computing applications in which there are a very large of mobile users. In the literatures,...