Wolfgang Fritsche

Learn More
Sensor networks become more and more important in various application areas and several application scenarios require connectivity between sensor network and the Internet. Especially scenarios of disaster management would benefit from IP-enabled sensor networks, providing a seamless integration in WAN infrastructures without a requirement for deploying(More)
Mobile IPv6 (MIPv6) is a protocol standardized by the Internet Engineering Task Force (IETF) in order to provide mobility support for roaming host systems. A key component within the MIPv6 functionality is the Home Agent (HA), a system at which roaming Mobile Nodes (MNs) register their current point of attachment to the Internet. In order to provide this(More)
Deploying appropriate security functionality in satellite networks is often necessary in order to allow their usage for certain sensitive scenarios. However, deploying security over satellite networks has specific issues caused either by the characteristic of the satellite link such as the long end-to-end delay and higher bit error rates, or by some other(More)
This paper describes the practical implementation of a federated health record server based on a generic and comprehensive architecture, deployed in a live clinical setting and accessed from wireless and IPv6 network test-beds. The authors, working at the Centre for Health Informatics and Multiprofessional Education (University College London), have built(More)
Communication facilities for vehicles became more and more important over the last years. Most time this involves the usage of wireless technologies for communication between vehicles, between vehicles and the roadside, as well as between the vehicle and systems reachable via Wide Area Networks (WANs) such as the Internet. This paper discusses how Internet(More)
1 Security Class: PU-Public, PP – Restricted to other programme participants (including the Commission), RE – Restricted to a group defined by the consortium (including the Commission), CO – Confidential, only for members of the consortium (including the Commission) RUNES FP6 IP "RUNES" – D4.2 Networking infrastructure and protocols Abstract: This document(More)
The Silk network is a VSAT-based network connecting a number of NRENs in Central Asia and the Caucasus into the Internet. While most of the network uses IPv4, this paper discusses how it was possible to provide native IPv6 facilities onto the Network. Our initial experiences with that system are described.
Active networks are networks that can be reprogrammed by injecting customized programs into some of the nodes of the network, which change the computation that is performed on packets flowing through them. Active networks have been successfully used to offer adaptable routing mechanisms in disaster scenarios, to dynamically compress data before(More)