Comnet Research Group

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Comnet Research Group

• Presentation
• Ioannis Komnios

Zurich 28/01/2009
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COMNET Group Members

• Group Leader Prof. Vassilis TSAOUSSIDIS
• Greek National Delegate in FP7 Cooperation-Space
• ESAs official Delegate in CCSDS
• Ph.D. Candidates
• Sotirios DIAMANTOPOULOS
• Stelios DIMITRIOU
• Ioannis KOMNIOS
• Efthimios KOUTSOGIANNIS
• Georgios PAPASTERGIOU
• Christos SAMARAS
• Aggeliki TSIOLIARIDOU
• 5 Master Students

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COMNET Group Info

• COMNET groups official website
• http//comnet.ee.duth.gr
• Democritus University of Thrace
• Department of Electrical and Computer Engineering
• Located in Xanthi, Greece
• 200m2 lab equipped with networked computers with
• experimental protocols and tools,
• emulation and simulation software
• monitoring utilities

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Completed Project

• Extending Internet into Space (Phase I)
• Project funded by the European Space Agency (ESA)
• Objective
• To build a space-suitable set of Internetworking
  protocols to allow efficient communications and
  application diversity.
• Protocols Developed
• DS-TP Deep Space Transport Protocol
• DTTP Delay Tolerant Transport Protocol

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Current Projects

• Extending Internet into Space (Phase II)
• ESA/ESOC DTN/IP Testbed Implementation and
  Evaluation
• Project funded by the ESA
• Objective
• The design of an appropriate DTN/IP Space-Ground
  testbed and associated scenarios for evaluation,
  mainly targeting Mars communications.
• Participants
• Democritus University of Thrace (DUTH)
• Hellenic Aerospace Industry (HAI)

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Current Projects

• Distributed Information Storage and
  Communication
• in Outer Space (DISCOS)
• Project funded by ESA
• Call under the Greece Industry Incentive Scheme
• Objective
• Assess the security requirements for DTN, propose
  a security architecture to satisfy them,
  implement the security mechanisms in a testbed
  and evaluate their system performance.
• Participants
• Democritus University of Thrace (DUTH)
• Hellenic Aerospace Industry (HAI)
• Industrial Systems Institute (ISI)

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Submitted To Be Submitted Proposals

• Space Routers
• Submitted to FP7 Space
• Objective
• The design and implementation of a Space Router,
  a crucial component for Space Internetworking.
• Ongoing Proposal
• To be submitted to ESA Call
• ESA Ground segment data system architecture to
  support CFDP, Bundle Protocol and IP

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Research Interests

• Delay Tolerant Networks (DTN)
• DS-TP, DTTP
• Energy Saving Protocols
• NCQ, SBT, LIBS
• QoS
• Equilibrium-RED, Head-to-tail, SSVP
• Routing
• Sensor Networks
• Wireless Networks

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Publications 2008

• I. Psaras, G. Papastergiou, V. Tsaoussidis, and
  N. Peccia
• "DS-TP Deep-Space Transport Protocol"
• IEEE Aerospace Conference 2008, Montana, USA,
  March 2008
• Christos V. Samaras and V. Tsaoussidis
• "DTTP A Delay-Tolerant Transport Protocol for
  Space Internetworks"
• 2nd ERCIM Workshop on eMobility, Tampere,
  Finland, May, 2008
• L. Mamatas and V. Tsaoussidis
• "Differentiating Services with Non-Congestive
  Queuing (NCQ)"
• IEEE Transactions on Computers, 2008
• S. Dimitriou and V. Tsaoussidis
• "Equilibrium-RED Adjusting RED's Dropping
  Probability for Maximum Fairness and Performance"
  
• International Symposium on Computer Networks
  (ISCN 2008), Constantinople, Turkey, 18-20 June,
  2008
• A. Tsioliaridou and V. Tsaoussidis
• "On the properties of System-Wide Responsive
  Behavior"
• 5th International Conference on Information
  Technology New Generations (ITNG 2008), Las
  Vegas, Nevada, USA, April 2008

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Publication Highlights

• Ioannis Psaras, Vassilis Tsaoussidis
• "On the Properties of an Additive Increase Rate
  Accelerator"
• Elsevier Computer Networks (COMNET) Journal, to
  appear.
• L. Mamatas and V. Tsaoussidis
• Differentiating Services with Non-Congestive
  Queuing (NCQ)"
• IEEE Transactions on Computers, 2008
• C. Zhang and V. Tsaoussidis
• TCP Smoothness and Window Adjustment Strategy
• The IEEE Transactions on Multimedia , 2006
• V. Tsaoussidis and C. Zhang
• "The dynamics of responsiveness and smoothness in
  heterogeneous networks"
• IEEE Journal on Selected Areas in Communications,
  (JSAC),
• Special issue on Mobile Computing and
  Networking, vol. 23, no. 6, pp.1178-1189, June
  2005
• V. Tsaoussidis and I. Matta
• "Open issues on TCP for Mobile Computing"

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Any questions?

• Thank you!