Πλοήγηση ανά Συγγραφέα "Korakis, T."
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A demonstration of the NITOS BikesNet framework
Kazdaridis, G.; Stavropoulos, D.; Ioannidis, S.; Korakis, T.; Lalis, S.; Tassiulas, L. (2014)In this paper we present NITOS Bikes Net, a framework for mobile sensing in a city-wide environment offering experimentation capabilities. More Specifically, we present a custom-made and modular prototype device that can ... -
A demonstration of video over a user centric prioritization scheme for wireless LANs
Choumas, K.; Korakis, T.; Tassiulas, L. (2008)Due to the unreliable nature of the wireless medium, provisioning of the Quality of Service (QoS) in wireless LANs is by far more complicated than in wired networks. In this demo we show the efficiency of a new QoS support ... -
A demonstration of video over an IEEE 802.11 compliant version of the enhanced-backpressure algorithm
Choumas, K.; Korakis, T.; Koutsopoulos, I.; Tassiulas, L. (2012)This demo presents a novel routing and scheduling scheme, named Enhanced-Backpressure over WiFi (EBoW), that obviously outperforms the dominant approach of a shortest-path routing (SRCR) combined with the classic CSMA/CA ... -
Design, architecture and implementation of a resource discovery, reservation and provisioning framework for testbeds
Stavropoulos, D.; Dadoukis, A.; Rakotoarivelo, T.; Ott, M.; Korakis, T.; Tassiulas, L. (2015)Experimental platforms (testbeds) play a significant role in the evaluation of new and existing technologies. Their popularity has been raised lately as more and more researchers prefer experimentation over simulation as ... -
Dishonest reporting in queue-based cross-layer network optimization
Giatsios, D.; Koutsopoulos, I.; Korakis, T. (2012)Queue-based cross-layer optimization algorithms have recently been a subject of intensive research in wireless networks. Their purpose is to guarantee stable operation and to achieve some form of fairness among users, ... -
Dynamic cross-layer association in 802.11-based mesh networks
Athanasiou, G.; Korakis, T.; Ercetin, O.; Tassiulas, L. (2007)In IEEE 802.11-based wireless mesh networks a user is associated with an access point (AP) in order to communicate and be part of the overall network. The association mechanism specified by the IEEE 802.11 standard does ... -
Enabling ITS real world experimentation in NITOS future internet facility
Makris, N.; Korakis, T.; Katsaros, D.; Tassiulas, L. (2014)Inter-Vehicle Communication is expected to be widely adopted during the next years by the car industry, enabling Vehicle-to-Vehicle and Vehicle-to-Infrastructure communication targeting at safer commuting. Therefore, the ... -
Enabling mobile sensing through a DTN framework
Maglogiannis, V.; Kazdaridis, G.; Stavropoulos, D.; Korakis, T.; Tassiulas, L. (2013)Participatory Sensing is the concept of distributed data collection by self-selected participants. By exploiting latest technology's smart devices, a large number of valuable information can be collected through embedded ... -
Enabling sensing and mobility on wireless testbeds
Niavis, H.; Kazdaridis, G.; Korakis, T.; Tassiulas, L. (2012)The inherent inability of simulation models to adequately express factors such as wireless signal propagation etc., can lead to incomplete evaluation of wireless protocols and applications. Thus, testing of proposed schemes ... -
Enabling wireless LAN troubleshooting
Syrigos, I.; Keranidis, S.; Korakis, T.; Dovrolis, C. (2015)Particular WLAN pathologies experienced in realistic scenarios are hard to detect, due to the complex nature of the wireless medium. Prior work has employed sophisticated equipment, driver modifications, or even application-layer ... -
Energy aware buffer aided cooperative relay selection
Hadef, M.; Apostolaras, A.; O'Reillys, J.; Mourad, A.; Mouhouche, B.; Koutsopoulos, I.; Korakis, T.; Tassiulas, L. (2014)In this paper we evaluate an energy-aware relay selection mechanism which exploits channel state information and the availability of buffers at relays to perform flexible relaying based on a backpressure-driven optimization ... -
Experimental evaluation and comparative study on energy efficiency of the evolving IEEE 802.11 standards
Keranidis, S.; Kazdaridis, G.; Makris, N.; Korakis, T.; Koutsopoulos, I.; Tassiulas, L. (2014)Over the last decade, the IEEE 802.11 has emerged as the most popular protocol in the wireless domain. Since the release of the first standard version, several amendments have been introduced in an effort to improve its ... -
An experimental framework for channel sensing through USRP/GNU radios
Passas, V.; Keranidis, S.; Korakis, T.; Koutsopoulos, I.; Tassiulas, L. (2012)In the last decade testbeds have been set-up to evaluate network protocols and algorithms under realistic settings. In order to draw solid conclusions about the corresponding experimental results, it is important for the ... -
An experimental framework for data gathering and analysis in wireless sensor networks
Keranidis, S.; Koutsopoulos, I.; Korakis, T.; Tassiulas, L. (2011)In the last decade testbeds have been set-up to evaluate network protocols and algorithms under realistic settings. Moreover, wireless sensors have lately been integrated into testbeds in order to simulate application ... -
Experimentation in heterogeneous European testbeds through the Onelab facility: The case of PlanetLab federation with the wireless NITOS testbed
Keranidis, S.; Giatsios, D.; Korakis, T.; Koutsopoulos, I.; Tassiulas, L.; Rakotoarivelo, T.; Parmentelat, T. (2012)The constantly increasing diversity of the infrastructure that is used to deliver Internet services to the end user, has created a demand for experimental network facilities featuring heterogeneous resources. Therefore, ... -
Experimentation on end-to-end performance aware algorithms Cross Mark in the federated environment of the heterogeneous PlanetLab and NITOS testbeds
Keranidis, S.; Giatsios, D.; Korakis, T.; Koutsopoulos, I.; Tassiulas, L.; Rakotoarivelo, T.; Ott, M.; Parmentelat, T. (2014)The constantly increasing diversity of the infrastructure used to deliver Internet services to the end user has created a demand for experimental network facilities featuring heterogeneous resources. Therefore, federation ... -
Experimenting with P2P traffic optimization for wireless mesh networks in a federated OMF-PlanetLab environment
Di Stasi, G.; Bifulco, R.; D'Elia, F. P.; Avallone, S.; Canonico, R.; Apostolaras, A.; Giallelis, N.; Korakis, T.; Tassiulas, L. (2011)The ultimate success of the Wireless Mesh Network paradigm (WMN) in large scale deployments depends on the ability to test it in real world scenarios. A typical application scenario which is worth to be investigated in ... -
Exploiting OpenFlow resources towards a content-centric LAN
Choumas, K.; Makris, N.; Korakis, T.; Tassiulas, L.; Ott, M. (2013)The efficient utilization of emerging new technologies for the sake of implementing attracting and novel network architectures is a major research challenge. As traditional addressing schemes seem to be rather inefficient ... -
The EXPRESS SDN experiment in the OpenLab large scale shared experimental Facility
Fdida, S.; Korakis, T.; Niavis, H.; Salsano, S.; Siracusano, G. (2014)In this paper we describe the design and implementation of an experiments dealing with SDN for Wireless Mesh Networks over the OpenLab Facility. The experiment is called EXPRESS: 'EXPerimenting and Researching Evolutions ... -
First demonstration of service-differentiated converged optical sub-wavelength and LTE/WiFi networks over GEANT
Rofoee, B. R.; Katsalis, K.; Yan, Y.; Shu, Y.; Korakis, T.; Tassiulas, L.; Tzanakaki, A.; Zervas, G.; Simeonidou, D. (2015)A converged optical-wireless testbed is formed integrating TSON sub-wavelength networking in UK and the NITOS wireless solution in Greece. End-to-end service provisioning and flow differentiation are demonstrated across ...