Publications

Design, Architecture and Implementation of a Resource Discovery, Reservation and Provisioning Framework for Testbeds

Authors: Donatos Stavropoulos, Aris Dadoukis, Thierry Rakotoarivelo, Max Ott, Thanasis Korakis and Leandros Tassiulas

Conference:  The 2015 International Workshop on Wireless Network Measurements and Experimentation (WiNMeE 2015), Bombay, India, 25 May 2015.

Abstract: 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 a way for acquiring more accurate results. This imposes significant challenges in testbed operators since an efficient mechanism is needed to manage the testbed's resources and provision them according to the users' needs. In this paper we describe such a framework which was implemented for the management of networking testbeds. We present the design requirements and the implementation details, along with the challenges we encountered during its operation in the NITOS testbed. Significant results were extracted through the experiences of the every day operation of the testbed's management.

Download paper: Broker.pdf

Planning of Dynamic Mobile Optical Virtual Network Infrastructures Supporting Cloud Services

Authors: M. P. Anastasopoulos, A. Tzanakaki, B. Rofoee, S. Peng, G. Zervas, D. Simeonidou, G. Landi, G. Bernini, N.Ciulli, J.F. Riera, E. Escalona, J. A. Garcia-Espin, K. Katsalis, T. Korakis

Conference:  EuCNC, Bologna, Italy, June 23/26, 2014

Abstract: This paper proposes a next generation ubiquitous converged infrastructure to support Cloud and mobile Cloud computing services. The proposed infrastructure facilitates interconnection of fixed and mobile end users with computational resources through a heterogeneous network integrating optical metro and wireless access networks. To satisfy the low-latency requirements of content-rich mobile applications, a novel stochastic virtual infrastructure planning model that takes a holistic approach considering jointly the network and computational resources is presented. Our modelling results identify trends and trade-offs related to end-to-end service delay, resource requirements and energy consumption levels of the infrastructure across the various technology domains under traffic uncertainty.

Download paper: Katsalis_CONTENT_EuCNC_2014.pdf

Wireless and wired network convergence in support of cloud and mobile cloud services: The CONTENT Approach

Authors: A. Tzanakaki , M. P. Anastasopoulos, G. Landi, G. Bernini, N. Ciulli, S. Peng, B. Rofoee, Y. Yan, D.Simeonidou, J.F. Riera, E. Escalona, J. A. Garcia-Espin, K. Katsalis, A. Korakis

Conference: Proceedings of European Wireless 2014; 20th European Wireless Conference; Barcelona, Spain ,2014

Abstract: The project CONTENT proposes a next generation ubiquitous converged infrastructure to support Cloud and mobile Cloud computing services. The proposed infrastructure facilitates interconnection of fixed and mobile end users with computational resources through a heterogeneous network integrating optical metro and wireless access networks. In this paper, we present the CONTENT converged network infrastructure and layered architecture which deploys cross-domain virtualization as a key technology. In accordance to the CONTENT proposal this paper also presents a novel virtual infrastructure planning scheme that takes a holistic approach considering jointly the network and computational resources.

Download paper: Katsalis_CONTENT_EW_2014.pdf

A Converged Network Architecture for Energy Efficient Mobile Cloud Computing

Authors: A. Tzanakaki, M. P. Anastasopoulos, S. Peng, B. Rofoee, Y. Yan, D. Simeonidou, G. Landi, G. Bernini, N. Ciulli, J.F. Riera, E. Escalona, J. A. Garcia-Espin, K. Katsalis, A. Korakis

Conference:  International Conference on Optical Networking Design and Modeling (ONDM), Stockholm, Sweden, May 2014.

Abstract: Mobile computation offloading has been identified as a key enabling technology to overcome the inherent processing power and storage constraints of mobile end devices. To satisfy the low-latency requirements of content-rich mobile applications, existing mobile cloud computing solutions allow mobile devices to access the required resources by accessing a nearby resource-rich cloudlet, suffering increased capital and operational expenditures. To address this issue, in this paper we propose an infrastructure and architectural approach based on the orchestrated planning and operation of Optical Data Center networks and Wireless Access networks. To this end, a novel formulation based on a multi-objective Non Linear Programming model is presented that considers energy efficient virtual infrastructure planning over the converged wireless, optical network interconnecting DCs with mobile devices, taking a holistic view of the infrastructure. Our modelling results identify trends and trade-offs relating to end-to-end service delay, resource requirements and energy consumption levels of the infrastructure across the various technology domains.

Download paper: Katsalis_CONTENT_ONDM_2014.pdf

 

More Articles ...

  1. A Cloud-based Content Replication Framework Over Multi-Domain Environments
  2. NITOS Testbed: A Cloud based Wireless Experimentation Facility
  3. The EXPRESS SDN Experiment in the OpenLab Large Scale Shared Experimental Facility
  4. C2M: Mobile Data Offloading to Mesh Networks