Seamless service interworking of ad-hoc networks and the Internet

Ad-hoc network research has traditionally focused on radio-specific challenges and packet routing. In order to make ad-hoc networking feasible in practise, we also need to consider how actual Internet protocols and applications can be supported. This paper presents our work on service discovery, session management and security for ad-hoc networks. Together with our previous work, the overall design enables secure service discovery and SIP-based communication in ad-hoc networks, and, when a gateway exists, communications between nodes in the ad-hoc network and the Internet. Towards the end of the paper, we will also address practical implementation issues.