Energy is one of the most critical constraints for sensor network applications. In this paper,
we exploit the localized prediction paradigm for power-efficient object tracking sensor …

We are witnessing in recent years growing interest for location-dependent information
services among mobile users. We examine the issue of processing location-dependent …

Mobile commerce (m-commerce) refers to the conduct of business using wireless devices
and communications. Driven by the success of e-commerce and impressive progress in …

In this paper we revise some of the most relevant aspects concerning the quality of service in
wireless networks, providing, along the research issues we are currently pursuing, both the …

Data broadcasting is well known for its excellent scalability. Most geographical data, such as
weather and traffic, is public information that has a large amount of potential users which …

A transactional agent is a mobile agent which manipulates objects in multiple object servers
with some constraint. There are other constraints like majority constraint where a transaction …

Wireless data broadcasting is well known for its excellent scalability. Most geographical
data, such as weather and traffic, is public information and has a large number of potential …

In a ubiquitous information environment, massive number of users carrying their portable
computers can retrieve information anywhere and anytime using wireless mobile computing …

In this paper, we present incremental and intelligent query answering techniques using a
multi-layered database (MLDB) in a mobile environment. We discuss static and dynamic …

The combination of broadcast and on-demand data delivery services is an economic way to
build a highly scalable wireless information system with limited bandwidth. The use of data …