SIPCache: A Distributed SIP Location Service for Mobile Ad-Hoc Networks.
S. Leggio, H. Miranda, K. Raatikainen, L. Rodrigues.
Proceedings of the 3rd Annual International Conference on Mobile and
Ubiquitous Systems: Networks and Services (MOBIQUITOUS 2006). San
Jose, California, July 2006. (Research-in-Progress Paper)
Abstract
Internet-based communication is currently in a hype. People utilize
Internet services more and more to communicate with each other, e.g.,
via VoIP or chat. The next step would be to reutilize the same
applications to achieve ubiquitous communication, anytime and
anywhere, also where network support is not available, such as in
ad-hoc networks. Existing Internet protocols must be modified for
working in the ad-hoc server-less environment. The Session Initiation
Protocol (SIP) is a fundamental element in the Internet for
establishing multimedia communication sessions. However, SIP cannot be
used in ad-hoc networks, as it relies on the support of SIP servers in
the network; e.g, in ad-hoc networks it is not possible to locate SIP
users since the assistance of a dedicated SIP server is missing. A
solution for this problem is presented in this paper, which describes
and evaluates a fully decentralized mechanism for locating SIP users
in ad-hoc networks.
Also available extended report (pdf) .
Luís Rodrigues