Giannis Karagiannis

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Resource management in DiffServ (RMD) framework is a simple, effective and scalable signaling method for resource reservation within a DiffServ domain. In the present paper we describe the way of integrating RMD in the future NSIS QoS application protocol that is under standardization in IETF. We demonstrate that the RMD edge-to-edge signaling is able to(More)
— Recent development in wireless technology enables communication between vehicles. The concept of Cooperative Adaptive Cruise Control (CACC)-which uses wireless communication between vehicles-aims at string stable behaviour in a platoon of vehicles. " String stability " means any non-zero position, speed, and acceleration errors of an individual vehicle in(More)
This paper represents a dynamic specification of the Almost Ideal Demand System (AIDS) based on recent developments on cointegration techniques and error correction models. Based on Greek meat consumption data over the period 1958–1993, it was found that the proposed formulation performs well on both theoretical and statistical grounds, as the theoretical(More)
— 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 domains are involved. There are no current solutions for delivering authentication, authorization and accounting (AAA) to multi-domain services. In our study we(More)
An alternative version of decomposition analysis, based on factor cost shares rather than input demand functions, is presented and applied to Greek agriculture. Decomposition analysis shows that most of the changes in factor cost shares during the period from 1973 to 1989 are attributed to technical change and factor substitution, while the role of the(More)
Internet-Drafts are working documents of the Internet Engineering Task Force (IETF), its areas, and its working groups. Note that other groups may also distribute working documents as Internet-Drafts. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is(More)