pageHeader("Dublin Ad-hoc Wireless Network (DAWN)");
Dublin Ad-hoc Wireless Network (DAWN) is a project undertaken by the
Networks & Telecommunications Research Group (NTRG) of Trinity College
Dublin that aims to build a production ad-hoc network operational in the
entire city of Dublin. DAWN aims not only to be a testbed for the
research undertaken at the NTRG, but also to serve as a prototype
Generation Mobile Network.
The basic aims of DAWN are summarised below:
- Building a production ad-hoc network in three main phases that will
be operational in:
- Phase 1: Parts of Trinity
College campus (completed end of August 2002).
- Phase 2: Trinity College Campus and Dublin city centre.
- Phase 3: City-wide.
- Test the scalability of ad-hoc networks.
- Allow new 'ad-hoc' applications to be developed and deployed.
- Provide a testbed for the research undertaken at the NTRG.
Currently the Dublin Ad-hoc Wireless Network (DAWN) has successfully
completed Phase 1 (end of August 2002) and is fully operational in
parts of the Trinity College campus:
The NTRG is at the moment actively working towards realising the second phase
of DAWN. When Phase 2 is complete, DAWN will cover the entire Trinity
College campus, as well as parts of the Dublin city centre.
The NTRG has developed a number of applications that work on top of the Dublin Ad-hoc Wireless Network (DAWN):
- Ad-hoc Chat: An application that can be utilised in order to
allow the communication of nodes participating in the ad-hoc network via
- 4GPhone: A demonstrator of some
of our ideas on where 4th generation telephony is going. This is
comprised of a simple person-to-person telephony using the Session
Initiation Protocol (SIP) as the signalling protocol, and DSR as the
ad-hoc routing protocol.
The NTRG Protocol Stack
The NTRG ad-hoc protocol stack employs a generic layer architecture that
seeks to allow a LEGO-like approach to the development and assembly of
- Wireless support: 802.11b, VHF Amateur, Radio, IrDa, Serial
- Routing protocols: DSR, OLSR, ZRP, AODV.
- Encryption: AES (Rijndael), Blowfish.
- Error detection: CRC-32.
- P2P: Nom - Name resolver, MANIFOLD (Overlay network constructor
...reminiscent of Microsoft PASTRY).
- Applications: Instant messenger, web access, 4th generation phone,
interactive spaces apps...
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