In this paper, we present an efficient fault-tolerant distributed location management protocol for personal communications service (PCS) networks. It achieves low connection-establishment delay, and under certain conditions, low overall cost compared to the current PCS location management protocol (i.e., IS-41). It also effectively avoids the shortcomings of IS-41, namely, centralized location ...

Location-based services or LBS refers to value-added service by processing information utilizing mobile user location. For this kind of LBS, the role of security service is very important in the LBS that store and manage the location information of mobile devices and support various application services using those location information. And in all phases of these functions that include acquisit...

An efficient stateless routing is possible because geographical routing protocol has many advantages of location information in mobile Ad-Hoc networks (MANETs). Such routing protocol, however, is significantly dependent on the existence of scalable location management services. In this paper, we propose a hierarchical location management (HLF) scheme considering the population of mobile nodes b...

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...