For a wireless network to effectively deliver services to the mobile users, it must have an efficient way to track them. The location management fulfills this task through location registration and paging. Many location management strategies, such as profile-based scheme (PBS), have been proposed to reduce the signaling traffic caused by the location update and paging. In the PBS scheme, the sy...

Location management consists of location update and search protocols. Trade-oo in location management is between the cost of searches and the cost of updates. The goal of an \eecient" location management strategy is to reduce the search and update costs. In this paper, we show that, using forwarding pointers in addition to home location servers help in providing eecient location management. It ...

Mobile satellite systems are a crucial component of the future global telecommunications infrastructure. An important aspect of the future system is to manage the location of both users and satellites. This paper presents a strategy for location registration (update) and paging in Low Earth Orbit (LEO) mobile satellite systems. First, we discuss the tradeoff that exists between four proposed sa...

In this paper we consider databases representing information about moving objects (e.g. vehicles), particularly their location. We address the problems of updating and querying such databases. Specifically, the update problem is to determine when the location of a moving object in the database (namely its database location) should be updated. We answer this question by proposing an information ...

IP based wireless mobile networks are of great importance now-a-days to users on the move. To provide connectivity to mobile users with same IP address despite of their change in location or point of attachment, the location information of mobile users must be kept up to date. Managing location information of such users basically needs information to be exchanged between different network entit...

Location-Based Service (LBS) is rapidly becoming the next ubiquitous technology for a wide range of mobile applications. To support applications that demand nearest-neighbor and history queries, an LBS spatial indexer must be able to efficiently update, query, archive and mine location records, which can be in contention with each other. In this work, we propose MOIST, whose baseline is a recur...

Location information in Mobile Ad Hoc Networks (MANETs) provides efficiency to uni-cast and multi-cast algorithms. This paper proposes a new location update algorithm called PLU. The essence of PLU lies in the integration of location prediction and one-hop broadcasting of location update packets. The full PLU algorithm and its associated data structure are described in the paper. The simulation...

In this paper, we propose a stochastic model to compute the optimal update boundary for the distance-based location update algorithm. The proposed model captures some of the real characteristics in the wireless cellular environment. The model can adapt to arbitrary cell topologies in which the number of neighboring base stations at different locations may vary. The cell residence time can follo...