Summer
2006

Interplanetary Internet
(Seminar 2 SWS)

Instructor: Prof. Jens-Peter Redlich
Thursday, 13:15 - 14:45, RUD 25, Room 4.112


Computer Science Department
Systems Architecture Group

IMPORTANT: This is a draft. The final document may differ significantly from the current version.

 
Abstract: Increasingly, network applications must communicate with counterparts across disparate networking environments characterized by significantly different physical and operational constraints than what we find in today's Internet. In general, these environments share a common inability to establish and maintain a low-loss, low-latency, end-to-end communication session. Yet, it is precisely the ability to maintain such a session that is required by most existing Internet-style protocols. We will study the fundamental principles that underlie a delay-tolerant networking (DTN) architecture, that is suitable for the future Interplanetary Internet (as an extreme case) but also for "extreme situation networks" on planet earth (e.g. in developing regions with limited power and telecommunication infrastructure, or, in natural disaster areas).

Source: http://www.ece.gatech.edu/research/labs/bwn/deepspace/
http://www.ece.gatech.edu/research/labs/bwn

 
Synopsis:
  • Seminar, Praktische Informatik, Hauptstudium.
  • 2h each week, over one semester (2 SWS).
  • Target Audience: Students who are interested in "Challenged Internetworks" - Which (try to) apply Internet technology for inter-planetary communication and also in disparate environments on earth.

How the seminar will be conducted:

This is experimental; if it does not work, we'll switch back to the traditional model (see last semester's seminar on "peer-to-peer networks").

In addition to the technical (computer science) matter, it is the goal of this seminar that you learn to speak in front of an audience, learn to convey ideas effectively, learn to accept feedback from the audience and use it to improve your work (here: your presentation). The purpose of the "elevator presentation" is to (try to) express a great idea in a very short time - a skill that is certainly useful in your future professional life (it also gives your fellow student's an idea what's to come).

  • Topics will be firmly assigned to interested students during the first meeting (April 20th)
  • No meeting in 2nd week - you will be busy with homework :-)
  • During the next two meetings, every student (presenter) gives a 15 minutes elevator presentation (summary preview) of his/her topic. The audience will provide feedback regarding style and content.
  • In the following 8 weeks we'll have presentations; 1 or 2 peer meeting. Presentations will be evaluated by two members of the audience at the end of each class (Bewertungskriterien-Seminarvortrag.pdf).
  • Presentations may be given in English or in German. All documents are in English (exceptions may be granted). A PowerPoint template can be obtained here .
  • Presenters summarize their presentation and relevant discussion on the Seminar's WIKI page within 2 weeks.
  • To obtain credits for this seminar, you are expected to attend regularily.

Prerequisites:

  • Successful completion of PI-1,2,3.
  • Completion of at least one seminar/lecture/project-seminar in the general area of "Communication Networks" (e.g., lectures offered by Dr. Sommer, Prof. Redlich).
  • Advanced knowledge of the protocols IP (addressing, Internet Routing), and TCP (window-based congestion control). Basic knowledge of ad-hoc wireless mesh-networks.

Wiki:

Syllabus:
  1. Interplanetary Internet - Introduction / State of the Art / Architecture Overview
  2. Interplanetary Transport Protocols
  3. DTN as a generalized messaging service
  4. DTN Architecture Overview
  5. DTN Routing (1): Epidemic Routing / Controlled Flooding
  6. DTN Routing (2): Probabilistic / Un-Planned / Unknown Connectivity Patterns
  7. DTN Routing (3): Planned / Scheduled / Known Connectivity Patterns
  8. DTN Multicasting
  9. Network Coding for Efficient Communication
  10. Data Retrieval in Intermittedly Connected Networks
  11. Self-Organization Principles
  12. Localization Services
  13. Under-Sea Communication
  14. Tetra, Tetrapol
  15. Security in DTN

Assignments (Themenvergabe):

Date

Presenter 

Topic

Slides
 20.Apr  Jens-Peter Redlich  Introduction  pdf
 27.Apr

no meeting

 No Class - You'll prepare your elevator presentations  
 04.May  Nordhausen, Nagel (2)
 Möbius, Altschudjian (5)
 Holzhauer, Cremerius (6)
 1st half of elevator presentations  
 11.May  Beier, Neukirchen (10)
 Kunze, Otto (9)
 Semmler, Keller (12)
 Herkt, Kühn (15)
 2nd half of elevator presentations  
 18.May  Nordhausen, Nagel  2: Interplanetary Transport Protocols   pdf
 25.May -

Himmelfahrt (National Holiday)

 
 01.Jun  Möbius, Altschudjian  5: DTN Routing (1): Epidemic Routing / Controlled Flooding  
 08.Jun  Holzhauer, Cremerius  6: DTN Routing (2): Probabilistic / Un-Planned / Unknown Connectivity Patterns  
 15.Jun  Carstensen  Regelmässige Bewegungsmuster   pdf
 22.Jun  Beier, Neukirchen  10: Data Retrieval in Intermittedly Connected Networks   pdf
  pdf
 29.Jun  Kunze, Otto  9: Network Coding for Efficient Communication  
 06.Jul  Maria Tsitiridou  8: DTN-Multicasting   pdf
 13.Jul  Herkt, Kühn  15: Security in DTN  
 20.Jul no meeting

 no meeting

 

Glossary

  DTN ... (1) Delay Tolerant Network
(2) Disruption Tolerant Network
  IPNI ... InterPlaNetary Internet
  ICN ... Intermittently Connected Network
  LEO ... Low Earth Orbit (satellite)
  FEC   Forward Error Correction
 Links
IPNSIG
Interplanetary Internet Project
DTNRG
Delay-Tolerant Networking Group
Georgia Tech
Broadband & Wireless Networking Lab

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