Πλοήγηση ανά Συγγραφέα "Keranidis, S."
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Contention and traffic load-aware association in IEEE 802.11 WLANs: Algorithms and implementation
Keranidis, S.; Korakis, T.; Koutsopoulos, I.; Tassiulas, L. (2011)Efficient association of a station with the appropriate access point has always been a challenging problem. The standard approach of considering only the Received Signal Strength, has recently been substituted by more ... -
Cross-testbed experimentation using the Planetlab-NITOS federation
Makris, N.; Keranidis, S.; Giatsios, D.; Korakis, T.; Koutsopoulos, I.; Tassiulas, L.; Rakotoarivelo, T.; Parmentelat, T. (2012)Federation of network testbeds has been identified as a key goal in the experimental testbeds community, leading to a recent activity burst in this research field. In this demo, we describe a federated experiment between ... -
Demo: Enabling AGILE spectrum adaptation in commercial 802.11 WLAN deployments
Keranidis, S.; Chounos, K.; Korakis, T.; Koutsopoulos, I.; Tassiulas, L. (2014)In this work, we present the AGILE Spectrum Adaptation system that is able to dynamically tune the channel central frequency and bandwidth of wireless links in an adaptive to the interference and trafic conditions way. The ... -
Demo: Online energy consumption monitoring of wireless testbed infrastructure through the NITOS EMF framework
Keranidis, S.; Kazdaridis, G.; Passas, V.; Korakis, T.; Koutsopoulos, I.; Tassiulas, L. (2013)Development of energy-efficient protocols and algorithms requires in-depth understanding of the power consumption characteristics of real world devices. To this aim, energy efficiency analysis is performed by the research ... -
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 ... -
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 ... -
An integrated chassis manager card platform featuring multiple sensor modules
Kazdaridis, G.; Keranidis, S.; Niavis, H.; Korakis, T.; Koutsopoulos, I.; Tassiulas, L. (2012)The gradually growing demand for experimentation of protocols designed for wireless networks in real environments has resulted in the development of experimental network facilities (testbeds). Most currently deployed ... -
NITOS mobile monitoring solution: Realistic energy consumption profiling of mobile devices
Keranidis, S.; Kazdaridis, G.; Passas, V.; Igoumenos, G.; Korakis, T.; Koutsopoulos, I.; Tassiulas, L. (2014)The unprecedented penetration of "smart" mobile devices in everyday use case scenarios, along with their energy greedy profile have motivated researchers in the field of wireless networking, towards reducing energy consumption ... -
Novel metrics and experimentation insights for dynamic frequency selection in wireless LANs
Kazdaridis, G.; Keranidis, S.; Fiamegkos, A.; Korakis, T.; Koutsopoulos, I.; Tassiulas, L. (2011)The rapidly increasing popularity of IEEE 802.11 WLANs has created unprecedented levels of congestion in the unlicensed frequency bands, especially in densely populated urban areas. Performance experienced by end-users in ... -
Online assessment of sensing performance in experimental spectrum sensing platforms
Keranidis, S.; Passas, V.; Chounos, K.; Liu, W.; Korakis, T.; Koutsopoulos, I.; Moerman, I.; Tassiulas, L. (2014)Dynamic Spectrum Access aims at exploiting underutilized frequency bands towards improving wireless network performance. In this context, spectrum sensing is employed, in order to monitor spectrum occupancy and drive ... -
Online energy consumption monitoring of wireless testbed infrastructure through the NITOS EMF framework
Keranidis, S.; Kazdaridis, G.; Passas, V.; Korakis, T.; Koutsopoulos, I.; Tassiulas, L. (2013)Development of energy-efficient protocols and algorithms requires in-depth understanding of the power consumption characteristics of real world devices. To this aim, energy efficiency analysis is performed by the research ... -
Optimization driven multi-hop network design and experimentation: The approach of the FP7 project OPNEX
Choumas, K.; Keranidis, S.; Koutsopoulos, I.; Korakis, T.; Tassiulas, L.; Juraschek, F.; Günes, M.; Baccelli, E.; Misiorek, P.; Szwabe, A.; Salonidis, T.; Lundgren, H. (2012)The OPNEX project exemplifies system and optimization theory as the foundations for algorithms that provably maximize capacity of wireless networks. The algorithms termed in abstract network models have been converted to ... -
Towards the efficient performance of LTE-A systems: Implementing a cell planning framework based on cognitive sensing
Passas, V.; Makris, N.; Keranidis, S.; Korakis, T.; Tassiulas, L. (2014)LTE and LTE-A have dominated as a 4G enabler protocol, adopted by the majority of the network providers worldwide. The efficient performance of an LTE network relies on the selected frequency within an operating band that ... -
The TREND experimental activities on "green" communication networks
Meo, M.; Zhang, Y.; Hu, Y.; Idzikowski, F.; Budzisz, Ł; Ganji, F.; Haratcherev, I.; Conte, A.; Cianfrani, A.; Chiaraviglio, L.; Coiro, A.; Bolla, R.; Jaramillo Ortiz, O.; Bruschi, R.; Gonzalez, R.; Guerrero, C.; Tego, E.; Matera, F.; Keranidis, S.; Kazdaridis, G.; Korakis, T. (2013)Aimed at answering important questions about the energy demand of current telecom infrastructure and the design of sustainable and energy-efficient future networks, the research of a number of European partners is brought ... -
Various detection techniques and platforms for monitoring interference condition in a wireless testbed
Liu, W.; Keranidis, S.; Mehari, M.; Vanhie-Van Gerwen, J.; Bouckaert, S.; Yaron, O.; Moerman, I. (2013)Recently the constant growth of the wireless communication technology has caused a huge demand for experimental facilities. Hence many research institutes setup public accessible experimental facilities, known as testbeds. ...