IMPORTANT: This is a draft. The final document may
differ significantly from the current version.
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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).
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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:
- Interplanetary Internet - Introduction / State of the Art / Architecture
Overview
- Interplanetary Transport Protocols
- DTN as a generalized messaging service
- DTN Architecture Overview
- DTN Routing (1): Epidemic Routing / Controlled Flooding
- DTN Routing (2): Probabilistic / Un-Planned / Unknown
Connectivity Patterns
- DTN Routing (3): Planned / Scheduled / Known Connectivity
Patterns
- DTN Multicasting
- Network Coding for Efficient Communication
- Data Retrieval in Intermittedly Connected Networks
- Self-Organization Principles
- Localization Services
- Under-Sea Communication
- Tetra, Tetrapol
- 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 |
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04.May |
Nordhausen, Nagel (2)
Möbius, Altschudjian (5)
Holzhauer, Cremerius (6) |
1st half of elevator presentations |
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11.May |
Beier, Neukirchen
(10)
Kunze, Otto (9)
Semmler, Keller (12)
Herkt, Kühn (15) |
2nd half of elevator presentations |
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18.May |
Nordhausen, Nagel |
2: Interplanetary Transport Protocols |
pdf |
25.May |
- |
Himmelfahrt (National Holiday) |
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01.Jun |
Möbius, Altschudjian |
5: DTN Routing (1): Epidemic Routing / Controlled Flooding |
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08.Jun |
Holzhauer, Cremerius |
6: DTN Routing (2): Probabilistic / Un-Planned / Unknown
Connectivity Patterns |
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15.Jun |
Carstensen |
Regelmässige Bewegungsmuster |
pdf |
22.Jun |
Beier, Neukirchen
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10: Data Retrieval in Intermittedly Connected Networks |
pdf
pdf |
29.Jun |
Kunze, Otto |
9: Network Coding for
Efficient Communication |
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06.Jul |
Maria Tsitiridou |
8: DTN-Multicasting |
pdf |
13.Jul |
Herkt, Kühn |
15: Security in DTN |
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20.Jul |
no meeting |
no
meeting |
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Glossary
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DTN |
... |
(1) Delay Tolerant Network
(2) Disruption Tolerant
Network |
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IPNI |
... |
InterPlaNetary Internet |
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ICN |
... |
Intermittently Connected Network |
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LEO |
... |
Low Earth Orbit (satellite) |
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FEC |
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Forward Error Correction |
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