Date Added: May 2010
In a ubiquitous environment, e.g. smart home, a user is surrounded by a network of sensor nodes all around and also on his body or clothing. The authors modeled such a sensor network as a services network where the nodes exchange services for collaborating and smart decision taking. As the user moves around performing activities, the surrounding network also changes as wireless inter-node connections are made or broken. The challenge is to re-discover the network quickly and transparently to the user.