Distraction-free Service in Pervasive Environments Based on Multi-Constrained QoS Routing

Pervasive computing provides an off-desktop computing paradigm, which allows users to access information and services anywhere and anytime. A pervasive environment is featured by user mobility. In other words, users may be moving around different locations. Tire user mobility makes it challenging to provide a distraction free service since a user's interaction context may change according to his/her location. One fundamental issue is to provide a multi-constrained QoS route between a user and a service provider, which may be changing upon time. This paper proposes a well-designed exact algorithm for tire routing issue. Simulation results prove tire performance of our approach.