I am thrilled to see that you are implementing uXMPP
on the contiki
os. I am working closely with sics.se and the NES group
They are contributing alot to Contiki.
We have projects now where we would like to add XMPP to the Contiki
community would you be interested in releasing your uXMPP?
Could we collaborate on implementing the new XEP's for IoT?
Thanks
/Joachim Lindborg
2013/5/14 Ronny Klauck <rklauck(a)informatik.tu-cottbus.de>
Hi Peter,
there are a couple of publications of uXMPP aka XMPP4IoT which we
want to point to:
- Klauck, R.; Kirsche, M.: Chatty Things - Making the Internet of
Things Readily Usable for the Masses with XMPP, in Proceedings of
the 8th International Conference on Collaborative Computing:
Networking, Applications and Worksharing (CollaborateCom 2012),
Pittsburgh, Pennsylvania, USA, October, 2012.
- Klauck, R.; Kirsche, M.: Combining Mobile XMPP Entities and Cloud
Services for Collaborative Post-Disaster Management in Hybrid
Network Environments, in Mobile Networks and Applications - The
Journal of SPECIAL ISSUES on Mobility of Systems, Users, Data and
Computing. Springer, Online Publication August 2012. DOI:
10.1007/s11036-012-0391-1
In the moment we skpipped the implemenatation of EXI for uXMPP,
because there is ongoing work by a phd student: its called uEXI -
http://code.google.com/p/ws4d-uexi/wiki/Introduction.
Unfortunately there is no code available.
But we did a lot of (unfortunately unpublished) performance tests
with other EXI implementations on the Zolertia Z1 sensor node,
which showed that the compression of EXI for XMPP messages is high
but the implementation effort and the memory consumption as well.
So we decided to optimize XMPP messages and there behavior in a
smart object network directly to have more available memory for
XEPs! This solution and the implemeted XEPs can be found as well in
the mentioned papers/journal. Our focus lies in the H2M
communication and in the parameter-less bootstrapping (with the
help of mDNS/DNS-SD aka uBonjour) of XMPP-based smart objects, so
called - Chatty Things -.
Papers about uBonjour are:
- Klauck, R.; Kirsche, M.: Enhanced DNS Message Compression -
Optimizing mDNS/DNS-SD for the Use in 6LoWPANs, in Proceedings of
the 9th IEEE International Workshop on Sensor Networks and Systems
for Pervasive Computing 2013 (PerSeNS 2013), co-located with the
11th IEEE Conference on Pervasive Computing and Communication
(PerCom 2013), San Diego, California, USA, March, 2013.
- Klauck, R.; Kirsche, M: Bonjour Contiki: A Case Study of a
DNS-Based Discovery Service for the Internet of Things, in
Proceedings of the 11th International IEEE Conference on Ad-Hoc
Networks and Wireless (ADHOC-NOW 2012), ser. Lecture Notes in
Computer Science (LNCS), X.-Y. Li, S. Papavassiliou, and S.
Ruehrup, Eds., vol. 7363. Springer, July 2012, pp. 317 – 330.
The papers (accept the journal) can be downloaded from here:
https://www-rnks.informatik.tu-cottbus.de/content/unrestricted/staff/mk/Pub…
Please let me know if you need more information ;)
Cheers
Michael & Ronny
On Tue, 14 May 2013 10:00:36 -0600
Peter Saint-Andre <stpeter(a)stpeter.im> wrote:
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Dear IoT folks, this paper looks interesting:
https://www-rnks.informatik.tu-cottbus.de/content/unrestricted/staff/mk/Pub…
Michael and Ronny, your research will probably gain an active
audience on the iot(a)xmpp.org discussion list. I've allowed you to
post to the list even though you are not subscribed. By the way,
you do not mention recent work like the EXI connection method
(XEP-0322). Is that because your paper predates the new XEPs?
Peter
- --
Peter Saint-Andre
https://stpeter.im/
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--
Dipl.-Inf. Ronny Klauck
Brandenburg University of Technology Cottbus
Computer Networks Group
http://www-rnks.informatik.tu-cottbus.de/~rklauck
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