A5027786433- Peer-to-Peer Network Technologies
- Caching and Content Delivery
- Image and Video Quality Assessment
- Network Traffic and Congestion Control
- Distributed and Parallel Computing Systems
- Multimedia Communication and Technology
- Mobile Agent-Based Network Management
- Advanced Optical Network Technologies
- Smart Grid Security and Resilience
- Software-Defined Networks and 5G
- Smart Grid Energy Management
- Human Mobility and Location-Based Analysis
- Opportunistic and Delay-Tolerant Networks
- Vehicular Ad Hoc Networks (VANETs)
Iquadrat (Spain)
2021-2022
University of Patras
2012-2021
Institute of Communication and Computer Systems
2021
National Technical University of Athens
2020-2021
Region of Western Greece
2016-2017
Service providers highly rely on network softwarization for addressing the demanding use cases of 5G verticals. In order vertical scenarios to be seamlessly executed, where coverage should provided in large areas, required infrastructure capacity and availability can only supported by cross-operator cooperation. this context, we employ a novel federated core-edge architecture, services are represented as service function chains (SFCs) offered owned either local operator or foreign one....
In recent years, research efforts tried to exploit peer-to-peer (P2P) systems in order provide Live Streaming (LS) and Video-on-Demand (VoD) services.Most of these focus on the development distributed P2P block schedulers for content exchange among participating peers characteristics overlay graph (P2P overlay) that interconnects set peers.Currently, researchers try combine with cloud infrastructures.They developed monitoring control architectures use resources from enhance QoS achieve an...
Currently commercial live video streaming systems are based either on a typical client-server or peer-to-peer architecture. The former outperforms in terms of stability and quality service, provided that the system is not stretched beyond its limits, while latter scalable has much lower cost operation with regards to required bandwidth resources. In this paper, we propose hybrid architecture combines best both worlds. order achieve developed mechanism monitors dynamically total available...
Real time media distribution services such as live streaming and video on demand (VoD) have gained great popularity among users. Specifically, it has been noted that VoD generates a respectable percentage of the internet traffic. On other hand major service providers (i.e. youtube) are not scalable, thus profitable due to bandwidth costs. Additionally, their servers consume vast amount power. P2P offers promising solution this problem. In work, an innovative distributed architecture is...
Summary In recent years, the users' perceived quality of experience (QoE) in streaming services has gained a lot attention. Particularly, number research efforts have focused on providing live and video‐on‐demand (VoD) using peer‐to‐peer (P2P) architectures. However, these proposed architectures, heterogeneity users their dynamic behavior not been sufficiently studied. real life scenario, where highly heterogeneous bandwidth resources (cable, DSL, 3G networks, etc) can arbitrarily decide to...
The goal of FLEXGRID [3] is to facilitate energy sector stakeholders (DSOs, TSOs, producers, retailers, flexibility providers) to: i) easily and effectively create advanced Energy Services (ESs), ii) interact in a dynamic efficient way with their environment (electricity grid) the rest market stakeholders, and, iii) automate optimize planning operation ESs. In this way, envisages secure, sustainable, competitive, affordable order bottom-up investments, modern smart grids have cope up...
Live video streaming over internet is becoming popular more and more. Current commercial live systems are based either on a typical client-server (cloud) or peer-to-peer (P2P) architecture. The former preferred for stability QoS, provided that the system not stretched beyond server's bandwidth capacity, while latter scalable with small management cost. In this paper, we stabilize cloud assisted P2P without sacrificing scalability. order to achieve develop: i) gossip protocol low overhead...
In recent years, a number of research efforts have focused on using peer-to-peer (P2P) systems in order to provide live streaming (LS) and Video-on-Demand (VoD) services. Most them the development distributed P2P block schedulers for content exchange among participating peers architecture overlay graph (P2P overlay) that interconnects set these peers. Currently, effort has shifted towards combination with cloud infrastructures. By deploying monitoring control architectures they use resources...
The vast majority of research in P2P live streaming systems focuses on system architectures that offer to participating peers: high upload bandwidth utilization, low delays during the video stream diffusion, robustness and stability under dynamic network conditions peers behavior.On other hand order guarantee complete time distribution every peer, average should be always greater than playback rate stream.Most approaches do not take into consideration this requirement.Thus, paper we propose...
Connected and Automated Mobility (CAM) encompasses different driving (automated, awareness, sensing, tele-operated), multimodal infotainment on the move services. These services have been defined with objective to increase road safety, improve traffic efficiency, reduce environmental impact of transportation bring travel comfort passengers drivers. Relevant technological tasks, stemming from highly dynamic vehicular environment, need be solved in order deliver seamless CAM expected QoS. The...