Monthly Archives: November 2010

New release , Contiki 2.5 !

Contiki is an open source operating system for wireless sensor networks and the Internet of things. Contiki provides low-power networking for resource constrained systems along with a development and simulation environment that makes research, development, and deployment easy. Contiki contains the low-power wireless Rime communication stack [3], the uIP TCP/IPv4 stack [1], and the IPv6 Ready certified uIPv6 TCP/IPv6 stack [4], complete with 802.15.4 6lowpan header compression and fragmentation.

The Instant Contiki development environment is a single-file download with all Contiki development and simulation tools [6].

Contiki 2.5 is a major update with many important new features. Release candidate 1 is released 3-4 weeks before 2.5 is released and is intended to help find showstopper bugs before the final 2.5 release. The code can be downloaded from the Contiki website.
New features in Contiki 2.5


ContikiRPL is an implementation of the proposed IETF standard RPL protocol for low-power IPv6 routing that now is the default IPv6 routing protocol in Contiki [5].

The ContikiMAC state-of-the-art low-power listening asynchronous radio duty cycling mechanism is now the default duty cycling mechanism in Contiki.
Contiki collect

Contiki collect is a CTP-like address-free data collection protocol that has been completely reworked to provide a significantly improved performance as well as configurability.

CollectView is a Java GUI that is used to set up a Contiki data collection network, either over Contiki collect or over UDP/IPv6/RPL.


Powertrace is an interface to the Contiki power profiling system that allows either real-time inspection or off-line analysis of the power consumption of a sensor network [2].

The MSPSim/Cooja simulation environment has received a significant speed-up.

Contiki 2.5 includes an experimental implementation of the IETF CoRE group’s CoAP application layer protocol for RESTful interaction with a low-power IP sensor network [7].
New platforms

Zolertia Z1, RedWire Econotag mc13224v, ST Microelectronics STM32w, Sentilla JCreate.
The Contiki Team

Adam Dunkels, SICS; Oliver Schmidt, SAP AG; Niclas Finne, SICS; Joakim Eriksson, SICS; Fredrik Österlind, SICS; Nicolas Tsiftes, SICS; Zhitao He, SICS; Simon Barner, TU München; Simon Berg; Julien Abeillé; Mathilde Durvy, Cisco; Colin O’Flynn, NewAE; Eric Gnoske, Atmel; Blake Leverett, Atmel; Michael Vidales, Atmel; David Kopf; Kasun Hewage, University of Colombo; Zach Shelby, Sensinode; Anthony Asterisk; Raimondas Sasnauskas, RWTH Aachen; Salvatore Pitrulli, ST Microelectronics; Dogan Yazar, SICS; Ricklef Wohlers, Oxford.

[1] A. Dunkels. Full TCP/IP for 8-bit architectures. In Proceedings of The International Conference on Mobile Systems, Applications, and Services (MobiSys), San Francisco, CA, USA, May 2003.

[2] A. Dunkels, F. Österlind, N. Tsiftes, and Z. He. Software-based on-line energy estimation for sensor nodes. In Proceedings of the IEEE Workshop on Embedded Networked Sensor Systems (IEEE Emnets), Cork, Ireland, June 2007.

[3] A. Dunkels, F. Österlind, and Z. He. An adaptive communication architecture for wireless sensor networks. In Proceedings of the International Conference on Embedded Networked Sensor Systems (ACM SenSys), Sydney, Australia, November 2007.

[4] M. Durvy, J. Abeillé, P. Wetterwald, C. O’Flynn, B. Leverett, E. Gnoske, M. Vidales, G. Mulligan, N. Tsiftes, N. Finne, and A. Dunkels. Making Sensor Networks IPv6 Ready. In Proceedings of the International Conference on Embedded Networked Sensor Systems (ACM SenSys), pages 421–422, Raleigh, North Carolina, USA, November 2008.

[5] N. Tsiftes, J. Eriksson, and A. Dunkels. Low-Power Wireless IPv6 Routing with ContikiRPL. In Proceedings of the International Conference on Information Processing in Sensor Networks (ACM/IEEE IPSN), Stockholm, Sweden, April 2010.

[6] N. Tsiftes, J. Eriksson, N. Finne, F. Österlind, J. Höglund, and A. Dunkels. A Framework for Low-Power IPv6 Routing Simulation, Experimentation, and Evaluation. In Proceedings of the conference on Applications, technologies, a rchitectures, and protocols for computer communications (ACM SIGCOMM), demo sess ion, New Delhi, India, August 2010.

[7] D. Yazar and A. Dunkels. Efficient Application Integration in IP-Based Sensor Networks. In Proceedings of the ACM BuildSys 2009 workshop, in conjuction with ACM SenSys 2009, November 2009.

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Coming soon WSN conferences

Coming soon Wireless sensor Networks conferences :

1. MidSens 2010 — The fifth international workshop on Middleware Tools, Services and Run-Time Support for Sensor Networks 29 Nov 2010 → 03 Dec 2010; Bangalore, Inde Page web:
2. ISSNIP 2010 — Sixth International Conference on Intelligent Sensors, Sensor Networks and Information Processing 07 Dec 2010 → 10 Dec 2010; Brisbane, Australie Page web:
3. SeNAmI 2010 — 3rd International Workshop on Sensor Networks and Ambient  Intelligence 11 Dec 2010 → 13 Dec 2010; Hong Kong SAR, Chine

Résumé: Advances in low-cost embedded processors and wireless communications have fuelled the recent intense development of sensor networks, which has potential to offer unobtrusive and transparent personal and ambient sensing infrastructures that are vital to the creation of the envisioned ubiquitous computing fabric for ambient intelligence (AmI).

The continued miniaturization and integration of sensors at unprecedented scale and density into our everyday objects and environments would soon enable the fine-grain capture of personal and ambient context information that provides the basis of intelligence for higher-order cognitive systems, i.e. systems with the ability to perceive, reason, learn, and react intelligently to their environments in order to make the most appropriate decisions or to take the best actions that concern the humans at the centre of their support or care.

Following the success of the inaugural SeNAmI workshop in Dunedin, New Zealand in 2008, and the second SeNAmI workshop in Hiroshima, Japan, in 2009, this event once again aims to bring together researchers from academia and industry to present and discuss recent trends and advances in sensor networks and ambient intelligence, and from such engagement foster innovations towards technology maturity of sensor-based AmI systems and applications.
Sujets: sensor networks, ambient intelligence, embedded systems, ubiquitous computing
Page web:
Sujets apparentés: Système embarqué & informatique ubiquitaire

4. WCSN 2010 — IEEE Sixth International Conference on Wireless Communication and Sensor Networks
17 Dec 2010 → 19 Dec 2010; Allahabad, Inde
Page web:
Sujets apparentés: Informatique mobile & télécommunications

5. WiSNet 2011 — IEEE Topical Conference on Wireless Sensors and Sensor Networks
16 Jan 2011 → 20 Jan 2011; Phoenix, États-Unis
Page web:

6. SAS 2011 — IEEE Sensors Applications Symposium
22 Fév 2011 → 24 Fév 2011; San Antonio, États-Unis
Page web:

7. ICNSC 2011 — 8th IEEE International Conference on Networking, Sensing and Control
11 Avr 2011 → 13 Avr 2011; Delft, Pays-Bas
Page web:
Sujets apparentés: Réseaux, Internet

8. CompSens 2011 — 2011 IEEE Workshop on Merging Fields of Computational Intelligen and Sensor Technology
11 Avr 2011 → 15 Avr 2011; Paris, France
Page web:
Sujets apparentés: Evénement multidisciplinaires ou générales en informatique

9. IPSN 2011 — The 10th International Conference on Information Processing in Sensor Networks
12 Avr 2011 → 14 Avr 2011; Chicago, IL, États-Unis
Page web:

10. ITSS 2011 — Special Session on Intelligent Techniques for Soft Sensors
28 Jui 2011 → 01 Jul 2011; Syracuse, NY, États-Unis
Page web:

11. ASUC — The Second International workshop on Ad hoc, Sensor & Ubiquitous Computing
23 Jul 2011 → 25 Jul 2011; Chennai, Inde

Résumé: The Second International workshop on Ad hoc, sensor & Ubiquitous Computing (ASUC-2011) will provide an excellent international forum for sharing knowledge and results in theory, methodology and applications of Ad Hoc & Ubiquitous computing. Current information age is witnessing a dramatic use of digital and electronic devices in the workplace and beyond. Ubiquitous Computing presents a rather arduous requirement of robustness, reliability and availability to the end user. Ad hoc, Sensor & Ubiquitous computing has received a significant and sustained research interest in terms of designing and deploying large scale and high performance computational applications in real life.
Page web:
Sujets apparentés: Système embarqué & informatique ubiquitaire

12. SENSORS 2011 — The 10th Annual IEEE Conference on Sensors
28 Oct 2011 → 31 Oct 2011; Limerick, Irlande
Page web:
Sujets apparentés: Métrologie et instrumentation

13. SenSys11 — The 9th ACM Conference on Embedded Network Sensor Systems
01 Nov 2011 → 04 Nov 2011; Seattle, WA, États-Unis
Page web:
Sujets apparentés: Système embarqué Samp; informatique ubiquitaire

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