A Presence System for Autonomous Networks

In English This chapter addresses the increasingly important issue of effective addressing, object location and presence notification in networks with no infrastructure and dynamically changing environments. This chapter presents Calto, an architecture comprising presence concepts from Second and Third Generation Mobile networks, Instant Messaging Systems subscriber services, and distributed DNS style functionality in a Peer-to-Peer setting. Calto utilizes locality and key nodes to provide these services. The architecture accommodates for true Ad Hoc environments while being scalable and robust in the face of network instability.