CS595 S04- Delay Tolerant Networks
Faculty: Elizabeth Belding
The design of the basic Internet protocols is based on a number of
assumptions. These include small end to end RTT, the existence of
some path between endpoints, and the perception of packet switching as
the right abstraction for end to end communications. Today, however,
new applications and networks are bringing new challenges to these
assumptions and the architecture built on these assumptions. Some of
these challenges are very large delays, intermittent and scheduled
links, high link error rates and heterogeneous underlying network
architectures and protocols in the protocol stack. Applications that
may pose such challenges include spacecrafts,
planetary/interplanetary, military/tactical, disaster response,
underwater, satellite and various forms of large scale ad hoc
networks. These applications, the impossibility of having a fixed
wired Internet infrastructure everywhere, and the inclusion of
mobility in most of these applications, make these challenges more
difficult to surmount.
Dates/Time: Mondays 10-11:30am
Location: CS Conference Room
Course ID: Contact Sandy Jacobs (firstname.lastname@example.org)
In the course of this seminar, we will investigate the new concept of
Delay Tolerant Networking (DTN). DTN has developed as a research area
in response to the disconnected operation characteristic of many of
the applications described above. DTN tries to create a general
architecture model that allows for long delays and disconnected
network partitions in the delivery of data to destinations. During
the seminar, we will study this architecture, and many of the
protocols developed to ensure packet delivery in these networks.
- Monday, April 5, 4:30-5:30pm (Note different time this week)
- Monday, April 12
"A Delay-Tolerant Network Architecture for Challenged Internets", Kevin Fall. IRB-TR-03-003.
Presenter: Khaled Harras
- Monday, April 19
"Communication in Disconnected Ad hoc Networks using Message Relay", Li and Rus, Journal of Parallel and Distributed Computing, 2003.
Presenter: Fay Charlotte
- Monday, April 26
"Probabilistic Routing in Intermittently Connected Networks", Lindgren, Doria and Schelen.
Presenter: Stefan Karpinski
Discussion leader: Anders Lindgren
- Monday, May 3
"Custody Transfer for Reliable Delivery in Delay Tolerant Networks", Fall, Hong, and Madden.
Presenter: Egil Oesthus
Discussion: Hsi-Chen Lee
- Monday, May 10
Transport Protocols for Internet-Compatible Satellite Networks", Henderson and Katz. IEEE Journal on Selected Areas of Communications, 1999.
Presenter: John Embretsen
Discussion: Bo Tian
- Monday, May 17
"TCP-Planet: A Reliable Transport Protocol for InterPlaNetary Internet", Akyildiz, Akan and Fang.
Presenter: Justin Averill
Discussion Leader: Andrew Hewatt
- Monday, May 24
"Wireless Sensor Networks for Habitat Monitoring", Mainwaring, Polastre, Szewczyk, Culler and Anderson, WSNA 2002.
Presenter: Jan Alse
Discussion Leader: Oddbjorn
- Monday, May 31
"Energy-Efficient Computing for Wildlife Tracking: Design Tradeoffs and Early Experiences with ZebraNet," Juang, Oki, Wang, Martonosi, Peh and Rubenstein, ASPLOS-X October 2002.
Presenter: Peter Longva