carenet-se

About Carenet-se

The objective of Carenet-se is to establish a research infrastructure where more cost-effective solutions to already existing demands can be demonstrated as well as completely new systems supporting the transformation of the health care work procedures to increase quality and cut costs in the overall process. The user scenarios addressed include teleconferencing sessions among medical experts, e-learning and remote patient monitoring.

Carenet-se consists of a backbone network connecting four nodes, the Karolinska campuses in Huddinge and Solna and the KTH campuses in Kista and downtown Stockholm, where also the upstream connection to European backbone is located. The backbone is based on dark fibre, passive CWDM components and open source routers with network cards for 1 and 10 GE links supporting digital optical monitoring. A residential gateway providing the performance, robustness and security necessary to extend the health care network into patients' homes tunneling via public commercial networks is under study.

An advanced service provided in the Carenet-se network is secure high definition SIP-based video conferencing. The service is implemented as open source software running on low-cost off-the-shelf hardware components, including a client developed in the minisip.org project that provides an open source secure SIP service platform and an available open source server. The system was integrated with a reflector supporting multi-party communication in the developed in the HDVIPER project. We are currently testing and enhancing this system to provide a complete and converged platform for high definition video conferencing, including point-to-point and multi-point transmissions.

The primary technological innovations of the Carenet-se project explore how commercial-grade, converged network infrastructures can be built using commodity hardware and open source networking tools. Such networks, built through virtualised network resources, must scale to meet demands from users as well as offer a semi-reliable service over an unreliable infrastructure in order to support medical applications.

Secondly, the project investigates how such networks can be intelligently and autonomously managed and operated allowing for self-organization, self-configuration, self-repairing and self-protection as well as dynamic SLA and QoS negotiations. This stems from the need to have a secure and robust network which can be managed by personnel with minimal IT skills as feasibly possible. This research infrastructure is also made available to health professionals at Karolinska Hospital who utilize the network to run bandwidth demanding applications such as high definition video conferencing as well as mission critical applications such as remote patient monitoring. It is envisioned that researchers will then be able to harvest much feedback from these users which can then be distilled to into new features and functionality for the underlying network. Carenet-se is being replicated into Carenet-rw in Kigali as part of Rwednet in Rwanda and into Carenet-mz in Maputo as part of MoRENet.