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But we did a lot of (unfortunately unpublished) performance tests with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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--
Regards
Joachim Lindborg
CTO, systems architect
Sustainable Innovation AB
Adress: Box 55998 102 16 Stockholm
Besöksadress: Storgatan 31 (Malmgården)
Email: Joachim.lindborg(a)sust.se,