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T-NOVA: A marketplace for virtualized network functions
- G. Xilouris, Eleni Trouva, A. Kourtis
- Computer ScienceEuropean Conference on Networks and…
- 23 June 2014
An integrated architecture is outlined, designed and developed within the context of the EU FP7 T-NOVA project, which allows network operators not only to deploy virtualized Network Functions (NFs) for their own needs, but also to offer them to their customers, as value-added services (Network Functions as-a-Service, NFaaS).
A framework for end-to-end video quality prediction of MPEG video
On the applications of efficient NFV management towards 5G networking
- Ioannis Giannoulakis, E. Kafetzakis, G. Xilouris, G. Gardikis, A. Kourtis
- Computer Science1st International Conference on 5G for Ubiquitous…
- 18 December 2014
The paper leverages the emerging paradigm of Network Function Virtualization (NFV) in an attempt to outline from the network management point of view the current trends on the road to 5G region and some key new concepts about network and small cell virtualization have been introduced.
Survey of cross-layer proposals for video streaming over Mobile Ad hoc Networks (MANETs)
- Spyros G. Mantzouratos, G. Gardikis, H. Koumaras, A. Kourtis
- Computer ScienceInternational Conference on Telecommunications…
- 6 September 2012
A survey of 44 studied papers on cross-layer mechanisms in MANETs, comparing tools, parameters and metrics used for their evaluation and indicatively describes in more detail some of these proposals.
Analysis of H . 264 video encoded traffic
Analysis of the data suggests that the video traffic can be considered as a stationary stochastic process with an autocorrelation function of exponentially fast decay and a marginal frame size distribution of approximately Gamma form.
Joint assessment of Network- and Perceived-QoS in video delivery networks
This article presents a network-agnostic framework for the joint assessment of N- and P-QoS, with the aim of correlating these two parameters for a specific network and service configuration.
Quantified PQoS assessment based on fast estimation of the spatial and temporal activity level
- H. Koumaras, A. Kourtis, D. Martakos, J. Lauterjung
- Computer ScienceMultimedia Tools and Applications
- 1 September 2007
The Mean PQoS (MPQoS) is introduced as a function of the video encoding rate and the picture resolution, and exploits it as a metric for objective video quality assessment.
Quantifying TV white space capacity: quantifying tv white space capacity:
This article presents a generic methodology for determining the actual capacity of white spaces using a geolocation-based approach, that is, dynamic assignment of radio resources to TVWS networks according to their geographical location.
Quantifying TV White Space Capacity; A Geolocation-based Approach
The so-called “TV White Spaces” (TVWS) are locally underutilized portions of the terrestrial TV bands and occur as a by-product of the Digital Switchover taking place in most countries across the…
Satellite Media Broadcasting with Adaptive Coding and Modulation
- G. Gardikis, N. Zotos, A. Kourtis
- Computer ScienceInt. J. Digit. Multim. Broadcast.
- 24 September 2009
A general cross-layer adaptation approach is proposed, along with its realization into a fully functional experimental network, and test results are presented, assessing the gain derived by ACM in a real large-scale deployment, involving HD services provision to two different geographical areas.