Mikko Alutoin

Towards self-organising personal networks

Personal Network (PN) is an emerging concept which combines pervasive computing and strong user focus. The idea is that the users personal devices organise themselves in a secure and private personal network transparently of their geographical location. This paper studies a PN architecture where devices form clusters using shared key cryptography over short range radio links (or a local area network) and where the otherwise isolated clusters are interconnected over the IP infrastructure using dynamic tunnelling. True self-organisation of the PN requires establishing distributed consensus via a voting algorithm. Remarks on the linkage between the different voting algorithms and the ad hoc routing schemes are provided.

Securing the Communication in Private Heterogeneous Mobile Ad hoc Networks

Mobile ad hoc networking has been a hot research topic for a decade or so, and many paradigms have been making use of it. One of these paradigms is the Personal Networks (PN). It is an emerging concept where the user’s personal devices form a virtual network which is secure and private, and reacts to changing environment and context intelligently. A fundamental property of the PN is that personal devices form private multi-hop clusters in an ad hoc manner whenever they come across each other. To this end, this paper presents a pair-wise key based scheme for forming secured private clusters in mobile ad hoc networks. The solution tackles the problem of node authentication combined with traffic encryption in relatively small ad hoc networks using proactive neighbour discovery and authentication. Additionally, the paper proves the feasibility of this solution by means of prototyping and experimental performance analysis.