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CALTO, a Self-Sufficient Presence System for Autonomous Networks

Publiceringsår: 2003
Språk: Engelska
Dokumenttyp: Konferensbidrag


In recent years much attention has been paid to spontaneously formed Ad Hoc networks. These networks can be formed without central management and without the use of the infrastructure the Internet provides. lack of infrastructure support brings difficulties in information location and management.

This paper describes Calto, a distributed Self Sufficient Presence System for Autonomous Networks. Calto aspires to solve the problems of the currently untouched areas of presence, notification, and location management in Ad Hoc networks. In order to achieve this, Calto combines presence concepts from Second and Third Generation Mobile networks with Instant Messaging Systems subscriber services while providing distributed DNS style functionality in a Peer-to-Peer setting. It also utilizes locality and key nodes to provide Client-Server like functionality. Calto accommodates for true Ad Hoc environments while being scalable and robust in the face of network instability.


  • Electrical Engineering, Electronic Engineering, Information Engineering


3rd Workshop on the Internet, Telecommunications and Signal Processing, WITSP'04

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