Westberg, L., Eriksson, A., Karagiannis, G., Heijenk, G.J., Rexhepi, V., Partain, D.
A method and network subsystem for providing on demand end to end Quality of Service (Qos) in a dynamic manner, use a combination of Resource Reservation Protocol (RSVP), load control protocol (and...
Pre-Congestion Notification (PCN) Architecture (2009)
Eardley, P, Chan, K., Charny, A., Geib, R., Karagiannis, G., Menth, M., ...
This document describes a general architecture for flow admission and termination based on pre-congestion information in order to protect the quality of service of established, inelastic flows within...
Ph. D. Thesis, Georgios Karagiannis, G. Karagiannis, Georgios Karagiannis
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Severe congestion handling approaches in NSIS RMD domains with bi-directional reservations (2008)
Dimitrova, D.C., Karagiannis, G., De Boer, P.T.
Real time applications usually impose strict QoS requirements on communication networks. Several QoS frameworks have been developed and standardized to satisfy these QoS requirements. Among them is...
Papagianni, C., Karagiannis, G., Tselikas, N. D., Sfakianakis, E., Chochliouros, I. P., Kabilafkas, D., ...
In recent years, technologies have been introduced offering a large amount of computing and networking resources. New applications such as Google AdSense and BitTorrent can profit from the use of...
Fast RTP Retransmission for IPTV - Implementation and Evaluation (2008)
Prins, M., Brunner, M., Karagiannis, G., Lundqvist, H., Nunzi, G.
With the deployment of IPTV reliability for multicast is becoming an important research topic again. Even though it has been intensively investigated before, there is now an understanding of the...
B-ISDN to the Cell Site Switch versus B-ISDN to the Mobile Terminal (2007)
This paper addresses in detail two possible scenarios for integrating the future mobile telecommunication system UMTS with the evolving broadband fixed telecommunication system BISDN. In the first...
Pre-Congestion Notification Architecture (2007)
Eardley, P., Babiarz, J., Chan, K., Charny, A., Geib, R., Karagiannis, G., ...
The purpose of this document is to describe a general architecturefor flow admission and termination based on aggregated (pre-) congestion information in order to protect the quality of service of...
AAA architectures applied in multi-domain IMS (IP multimedia subsystem) (2007)
Ooms, W.S., Karagiannis, G., Van Deventer, M.O., Veldhuizen, J.
There is a group of communication services that use resources from multiple domains in order to deliver their service. Authorization of the end-user is important for such services, because several...
On the security of the Mobile IP protocol family (2007)
Meyer, U., Tschofenig, H., Karagiannis, G.
The Internet Engineering Task Force (IETF) has worked on network layer mobility for more than 10 years and a number of RFCs are available by now. Although the IETF mobility protocols are not present...
Pre-Congestion Notification Encoding Comparison (2007)
DiffServ mechanisms have been developed to support Quality of Service (QoS). However, the level of assurance that can be provided with DiffServ without substantial over-provisioning is limited....
LC-PCN: The Load Control PCN Solution (2007)
Westberg, L., Bhargava, A., Bader, A., Karagiannis, G.
There is an increased interest of simple and scalable resource provisioning solution for Diffserv network. The Load Control PCN (LC-PCN) addresses the following issues: o Admission Control for real...
RMD-QOSM - The Resource Management in Diffserv QoS model (2006)
Bader, A., Karagiannis, G., Westberg, L., Kappler, C., Phelan, T.
This document describes an NSIS QoS Model for networks that use the Resource Management in Diffserv (RMD) concept. RMD is a technique for adding admission control and preemption function to...
Resource Unavailability (RU) Per Domain Behavior (2006)
Karagiannis, G., Westberg, L., Bader, A., Tschofenig, H.
This draft specifies a Per Domain Behavior that provides the ability to Diffserv nodes located outside Diffserv domain(s), e.g., receiver or other Diffserv enabled router to detect when the resources...
A method of an equipment for controlling header compression context during handover in a data exchange between a transmitter and a transmitter and a receiver of an IP mobile data network wherein data...
Support of Future Disaster Response Using Generalized Access Networks (GANs) (2006)
Karagiannis, G., Jones, V.M., Heemstra De Groot, S.M.
Efficient communication and coordination are major challenges experienced by the emergency services (firebrigade, police, ambulance) during the first response to a major incident. A major incident...
SIP Controlled Admission and Preemption (2006)
Babiarz, J., Chan, K., Karagiannis, G., Eardley, P.
This framework defines a method of providing Explicit Congestion Control to real-time inelastic traffic like voice and video through the use of session admission control and preemption mechanisms....
NSLP for Quality-of-Service signalling (2006)
Manner, J., Karagiannis, G., McDonald, A.
This specification describes the NSIS Signaling Layer Protocol (NSLP) for signaling QoS reservations in the Internet. It is in accordance with the framework and requirements developed in NSIS....
Zhang, J., Monteiro, E., Mendes, P., Karagiannis, G., Andres-Colas, J.
This document has three goals. First of all, it presents our analysis of how to use the NSIS signaling (inter-domain QOSM and intra-domain QOSM) to fulfill the QoS control in accord with the ITU-T...
Pre-Congestion Notification marking (2006)
Briscoe, B., Eardley, P., Songhurst, D., Le Faucheur, F., Charny, A., Liatsos, V., ...
Pre-Congestion Notification (PCN) builds on the concepts of RFC 3168, "The addition of Explicit Congestion Notification to IP". However, Pre-Congestion Notification aims at providing notification...
Briscoe, B., Eardley, P., Songhurst, D., Le Faucheur, F., Charny, A., Liatsos, V., ...
This document describes a deployment model for pre-congestion notification (PCN) operating in a large DiffServ-based region of the Internet. PCN-based admission control protects the quality of...
Support of Future Disaster Response Using Generalized Access Networks (GANs) (2006)
Karagiannis, G., Jones, V.M., Heemstra De Groot, S.M.
Efficient communication and coordination are major challenges experienced by the emergency services (firebrigade, police, ambulance) during the first response to a major incident. A major incident...
NSIS: A New Extensible IP Signaling Protocol Suite (2005)
Fu, X., Schulzrinne, H., Bader, A., Hogrefe, D., Kappler, C., Karagiannis, G., ...
In the last few years a number of applications have emerged that can benefit from networklayer signaling (i.e., the installation, maintenance, and removal of control state in network elements). These...
Jitter reduction in Differentiated Services (Diffserv) networks (2005)
A method and a computer program for reducing jitter in IP packet transmission in a Diffserv network having ingress and egress Border Routers and using premium service, expedited forwarding and source...
Method and system for inter-operability between mobile IP and RSVP during route optimization (2005)
A correspondent host that needs to begin a real-time packet-data session with a mobile node sends a mobile IP binding request message to a home agent of the mobile node. The correspondent host does...
Bader, A., Karagiannis, G., Westberg, L., Kappler, C., Phelan, T., Tschofenig, H., ...
Reservation-based Quality of Service (QoS) in a mixed wireless and wireline environment requires an end-to-end signaling protocol that is capable of adapting to the idiosyncrasies of the different...
Ad hoc networking and ambient intelligence to support future disaster response (2005)
Jones, V.M., Karagiannis, G., Heemstra De Groot, S.M.
We present a vision of how ambient intelligent environments may be used in future to support the emergency services during first response to a major incident. A futuristic scenario is presented...
Ad hoc networking and ambient intelligence to support future disaster response (2005)
Jones, V.M., Karagiannis, G., Heemstra De Groot, S.M.
We present a vision of how ambient intelligent environments may be used in future to support the emergency services during first response to a major incident. A futuristic scenario is presented...
Next Steps in Signaling (NSIS): Framework (2005)
Hancock, R., Karagiannis, G., Loughney, J.
The Next Steps in Signaling (NSIS) working group is considering protocols for signaling information about a data flow along its path in the network. The NSIS suite of protocols is envisioned to...
Using IP as Transport Technology in Third Generation and Beyond Radio Access Networks (2005)
Bader, A., Westberg, L., Karagiannis, G.
This paper discusses the motivation for developing a new QoS signaling protocol for IP-based Radio Access Networks. It describes the main characteristics of these networks and the special...
3GPP QoS Model for Networks Using 3GPP QoS Classes (2005)
Jeong, S., Lee, S., Karagiannis, G., Lieshout, G.
This draft describes an NSIS QoS Model (QOSM) based on 3GPP QoS classes and bearer service attributes. Specifically, this draftdescribes additional optional parameters for QSPEC which carries 3GPP...
Oosthoek, S., Jacobsson, M., Karagiannis, G.
A method is provided for reserving, maintaining and releasing resources in the interior nodes located within an interior network positioned between edge nodes, wherein requests belonging to...
RMD (Resource Management in Diffserv) QoS-NSLP model (2004)
Bader, A., Westberg, L., Karagiannis, G.
This draft describes a local QoS model, denoted as Resource Management in Diffserv (RMD) QoS model, for NSIS that extends the IETF Differentiated Services (Diffserv) architecture with a scalable...
Resource Management in Diffserv On DemAnd (RODA) PHR (2003)
Westberg, L., Jacobsson, M., De Kogel, M., Oosthoek, S., Partain, D., Rexhepi, V., ...
The purpose of this draft is to present the Resource Management in Diffserv (RMD) On DemAnd (RODA) Per Hop Reservation (PHR) protocol. The RODA PHR protocol is used on a per-hop basis in a...
Resource Management in Diffserv (RMD) Framework (2003)
Westberg, L., Jacobsson, M., Oosthoek, S., Partain, D., Rexhepi, V., Szabó, R., ...
This draft presents the work on the framework for the Resource Management in Diffserv (RMD) designed for edge-to-edge resource reservation in a Differentiated Services (Diffserv) domain. The RMD...
Resource management in Diffserv measurement-based admission control PHR (2002)
Westberg, L., Heijenk, G.J., Karagiannis, G., Oosthoek, S., Partain, D., Rexhepi, V., ...
The purpose of this draft is to present the Resource Management in Diffserv (RMD) Measurement-Based Admission Control (RIMA) Per Hop Reservation (PHR) protocol. The RIMA PHR protocol is used on a...
Westberg, L., Eriksson, A., Karagiannis, G., Heijenk, G.J., Rexhepi, V., Partain, D.
A method and network subsystem for providing on demand end to end Quality of Service (Qos) in a dynamic manner, use a combination of Resource Reservation Protocol (RSVP), load control protocol (and...
DiffServ resource management in IP-based radio access networks (2001)
Heijenk, G.J., Karagiannis, G., Rexhepi, V., Westberg, L.
The increasing popularity of the Internet, the flexibility of IP, and the wide deployment of IP technologies, as well as the growth of mobile communications have driven the development of IP-based...
Karagiannis, G., Heijenk, G.J.
Mobile telephony has been for many years the most popular application supported by mobile systems such as the Global System for Mobile communications (GSM). Recently, the use of mobile data...
Mobility support for ubiquitous Internet (2000)
Karagiannis, G., Heijenk, G.J.
This document describes an architecture that is providing Internet access to mobile hosts, by allowing them to access this architecture through various access points and using various wireless...
A framework for QoS & mobility in the Internet next generation (2000)
Karagiannis, G., Rexhepi, V., Heijenk, G.J.
It is expected that the next generation Internet architecture will support applications with different quality of service requirements, independently of whether their location is fixed or movable....
A framework for QoS & mobility in the Internet next generation (2000)
Rexhepi, V., Karagiannis, G., Heijenk, G.J.
It is expected that the Internet next generation architecture will support applications with different quality of service requirements, independently of whether their location is fixed or mobile....
Mobile IP: state of the art report (1999)
Karagiannis, G., Heijenk, G.J.
Due to roaming, a mobile device may change its network attachment each time it moves to a new link. This might cause a disruption for the Internet data packets that have to reach the mobile node....