In this paper we propose a distributed location management scheme to reduce the bottleneck problem of HLR in Large Mobile Networks (LMN). Using analytical modeling and numerical simulation, we show that replicating location information is both appropriate and efficient for small mobile networks. Then, we extend the scheme in a hierarchical environment to reduce the overhead traffic and scale to...

The objective of the work presented in this paper is develop a method to interpret interior elevator panels for robot navigation. We outline a three-level hierarchical approach applies principles from both supervised and unsupervised machine learning techniques. In particular, we will show the development of an algorithm that accepts an elevator panel image paired with a desired floor location ...

In [1], [2], we presented the design, specification and proof of correctness of a fully distributed location management scheme for PCS networks and argued that fully replicating location information is both appropriate and efficient for small PCS networks. In this paper, we analyze the performance of this scheme. Then, we extend the scheme in a hierarchical environment so as to scale to large P...

Data privacy has been the primary concern since the distributed database came into the picture. More than two parties have to compile their data for data mining process without revealing to the other parties. Continuous advancement in mobile networks and positioning technologies have created a strong challenge for location-based applications. Challenges resembling location-aware emergency respo...

Location-aware services are a promising way of exploiting the special possibilities created by ubiquitous mobile devices and wireless communication. Advanced location-aware applications will require highly accurate information about the geographic location of mobile objects and functionality that goes beyond simply querying the user's position, for example determining all mobile objects inside ...

A Mobile Ad-hoc Network (MANET) is a network topology of choice where autonomous nodes form a collaborative community. Position based routing protocols have been studied extensively over the past years, But how to efficiently provide the location information for nodes and how to control location update frequency is still a challenge. In this paper, we address the problem of maintaining location...

Now there is tremendous interest in data warehousing and OLAP applications. OLAP applications typically view data as having multiple logical dimensions (e.g., product, location) with natural hierarchies de ned on each dimension, and analyze the behavior of various measure attributes (e.g., sales, volume) in terms of the dimensions. OLAP queries typically involve hierarchical selections on some ...

Data is increasingly distributed across networks of mobile nodes such as wireless sensor networks, distributed smartphone applications, or ad hoc recovery networks in disaster scenarios, but must still be reliably collected, stored, and retrieved. While such networks run in either ad hoc mode or use existing infrastructure, all of them must deal with node heterogeneity. Wireless nodes invariabl...

In this paper, we propose a combination between a routing protocol and Hierarchical Location Service (HLS) that we denote Hybrid Routing and Hierarchical Location Service (HRHLS). HLS and a routing protocol used to be combined in the original work with a direct method, i.e. the routing protocol takes care of routing packets and HLS is called to get the destination position when the target node ...

Mobile hosts in a wireless network can move from one location to another while communicating with other hosts. A challenge is to provide seamless network access for mobile hosts and, at the same time, to retain compatibility with existing network protocols and applications. This paper addresses the issue of route optimization in IP mobility support that provides mobile hando and \triangle" rout...