26. feb. 2010
IWSN 2010 : International Workshop on Interconnections of Wireless Sensor Networks
IWSN 2010 : International Workshop on Interconnections of Wireless Sensor Networks: "International Workshop on Interconnections of Wireless Sensor Networks [Santa Barbara, California, USA] [Jun 23, 2010 - Jun 23, 2010]"
What is a Microcontroller?
What is a Microcontroller?
 | Visit http://www.microchip.com/mchptube to learn more. This video is intended for beginners unfamiliar with Microcontroller. The basic components of a Microcontroller are compared to a common household PC to help reinforce concepts. |
ZeroG Getting Started Guide Video for Microchip (Part 2)
ZeroG Getting Started Guide Video for Microchip (Part 2)
 | ZeroG Wireless is now Microchip Technology Inc. This is part 2 of the video discussing how to setup the ZeroG module for use with a Microchip development kit. Visit http://www.microchip.com/ to learn more. |
ZeroG Getting Started Guide Video for Microchip (Part 1)
ZeroG Getting Started Guide Video for Microchip (Part 1)
 | ZeroG Wireless is now Microchip Technology Inc. This video describes the Getting Started Guide for setting up the ZeroG module with a Microchip development kit. Visit http://www.microchip.com to learn more. |
25. feb. 2010
OpenWSN: Open-Source Standards-Based Protocol Stacks for Wireless Sensor Networks
Project- OpenWSN: Open-Source Standards-Based Protocol Stacks for Wireless Sensor Networks
Thomas Watteyne under supervision of Kris Pister
"We are building a multi-platform, multi-operating system, fully standards-compliant interoperable wireless sensor network stack. Major standardization bodies have been looking at how wireless multi- hop networks should operate reliably (IEEE 802.15.4E, IETF RPL), how they can integrate within the Internet (IETF 6LoWPAN), and how utilities and end users should interact (OpenADR). All of these standards are being finalized. The OpenWSN project aims at federating these standards into a fully- functional protocol stack, at implementing these on a number of hardware and software platforms, and at testing the resulting network in realistic residential, commercial and industrial facilities. All of the software developed is open-source and accessible at http://openwsn.berkeley.edu/."
Thomas Watteyne under supervision of Kris Pister
"We are building a multi-platform, multi-operating system, fully standards-compliant interoperable wireless sensor network stack. Major standardization bodies have been looking at how wireless multi- hop networks should operate reliably (IEEE 802.15.4E, IETF RPL), how they can integrate within the Internet (IETF 6LoWPAN), and how utilities and end users should interact (OpenADR). All of these standards are being finalized. The OpenWSN project aims at federating these standards into a fully- functional protocol stack, at implementing these on a number of hardware and software platforms, and at testing the resulting network in realistic residential, commercial and industrial facilities. All of the software developed is open-source and accessible at http://openwsn.berkeley.edu/."
CFP: IEEE Globecom'2010, Ad Hoc, Sensor, and Mesh Networking Symposium, December 6-10, 2010, Miami, Florida, USA
********************************************************************************
CALL FOR PAPERS
The 2010 IEEE Global Communications Conference (Globecom'2010)
Ad Hoc, Sensor, and Mesh Networking Symposium
December 6-10, 2010, Miami, Florida, USA
*******************************************************************************
Highlights at Globecom'2010:
(1) 25+ world renowned scientists will deliver Plenary Speeches in
Featured Talks and Plenary Forums;
(2) First-time FREE tutorial program open to all GC10 attendees
(with 12 high-quality tutorials selected from 150 proposals);
(3) 23 engaged workshops to cover the latest industry and academic
advancements;
(4) Local information introduction to beautiful Miami & Florida, as
well as the wonderful conference venue.
Topic of Interest:
The Ad Hoc, Sensor, and Mesh Networking Symposium of Globecom'2010
aims at providing a forum for sharing ideas among researchers and
practitioners working on state-of-the-art solutions Related to Ad Hoc,
Sensor, and Mesh Networks. We are seeking papers that describe original
and unpublished contributions addressing various aspects of the topics
listed below (but not limited to):
* Applications and Evolutions of Ad Hoc, Sensor, and Mesh Networks
* Autonomic Networking
* Wireless, Ad Hoc, and Sensor Devices
* Physical Layer Design of Ad Hoc, Sensor and Mesh Networks
* Frequency and Channel Allocation Algorithms
* Topology Control and Management
* Algorithms and Modeling for Localization, Target Tracking,
and Mobility Management
* Architectures of Wireless Communication and Mobile Computing
in Ad Hoc, Sensor and Mesh Networks
* MAC Protocols for Ad Hoc, Sensor, and Mesh Networks
* QoS Provisioning in Medium Access Control and Routing for Ad
Hoc and Mesh Networks
* Analytical, Mobility, and Validation Models for Ad Hoc,
Sensor, and Mesh Networks
* Performance Evaluation and Modeling of Mobile, Ad Hoc,
Sensor, and Mesh Networks
* Integrated Simulation and Measurement based Evaluation of Ad
Hoc and Sensor Systems
* New Simulation Languages, Methodologies, and Tools for
Wireless Systems in Ad Hoc, Sensor and Mesh Networks
* Analysis of Correctness and Efficiency of Protocols
* Data Management, Data Aggregation, Data Dissemination, and
Query Processing
* Distributed Algorithms in Ad Hoc, Sensor and Mesh Networks
* Pricing Modeling and Solutions
* Pervasive and Wearable Computing
* Co-existence Issues of Hybrid Networks
* Energy Saving and Power Control Protocols for Ad Hoc, Sensor,
and Mesh Networks
* Resource Management Algorithms in Mobile, wireless Ad Hoc and
Mesh Networks
* Synchronization and Scheduling Issues in Mobile and Ad Hoc
Networks
* Service Discovery for Wireless Ad Hoc, Mesh, and Sensor Networks
* Cross-layer Design and Interactions in Ad Hoc, Sensor and
Mesh Networks
* Mobile Service and QoS Management for Ad Hoc and Sensor Networks
* Survivability and Reliability Evaluation and Modeling for Ad
Hoc, Sensor, and Mesh Networks
* Ubiquitous and Mobile Access for Wireless Mesh Networks
* Security and Privacy Issues in Wireless Ad Hoc, Mesh, and
Sensor Networks
Important Dates:
* Paper Submission: 15 March 2010
Paper Submission Link: http://www.edas.info/newPaper.php?c=7409
* Paper Acceptance: 1 July 2010
* Camera-ready Paper: 1 August 2010
Co-Chairs
Hossam Hassanein, Lead Co-Chair
Queens University, Canada
Phone: 613-533-6052, Email: hossam@cs.queensu.ca
Xiaohua Jia
City University of Hong Kong, Hong Kong, China
Phone: 852-2788-9670, Email: csjia@cityu.edu.hk
Sirisha Medidi
Boise State University, USA
Phone: 208-426-2623, Email: sirishamedidi@boisestate.edu
Cheng Li
Memorial University, Canada
Phone: 709-737-8972, E-mail: licheng@mun.ca
24. feb. 2010
23. feb. 2010
Sensors to Help You Get Fit - From Nike, Adidas & Others
Sensors to Help You Get Fit - From Nike, Adidas & Others: "
Discuss
"
Keep up, because tracking your fitness progress on the Internet - via sensors attached to your body or workout gear - is going to become very popular.
Sponsor
The Nike+ shoes come with a sensor that tracks your run, then sends the data to your iPod. It even has its own social network. And what Web product circa 2010 doesn't come with a Twitter and Facebook connection? Sure enough, the Nike+ can automatically tweet and post a status report on Facebook.
The miCoach Pacer can also verbally coach the runner during their run, "to ensure that they are staying within their targeted heart rate zone."
There's an accompanying website, where users can create training plans, set goals and monitor their progress.
Let us know if you currently use an Internet-connected fitness system, especially if it makes use of sensors.
Discuss
"
22. feb. 2010
Highlights from EWSN 2010
Highlights from EWSN 2010: "I was invited to give the keynote speech at the European Wireless Sensor Networks conference in Coimbra, Portugal. This was a fantastic location for a conference -- Coimbra has one of the oldest universities in Europe, over 700 years old. It's a beautiful city. EWSN is the European counterpart to conferences such as SenSys and IPSN. It is a very different crowd than typically attends those events. I learned a lot about a couple of the big EU-sponsored sensor nets projects including CoNet and GINSENG. Interestingly, the Contiki OS seems to be pretty popular amongst the European research groups, in contrast to the TinyOS-dominated US landscape.
My keynote was entitled 'The Next Decade of Sensor Networking' and I tried to argue that the field is running the risk of becoming stagnant unless we define some big research challenges that will carry us for the next decade. I've blogged about these themes here before. I delivered the talk in 'Larry Lessig' style -- having written the 'script' as an essay and then making slides to highlight the key points, rather than starting with the slides and ad libbing the voiceover as I usually do. I'll post a video here soon - the slides are more than 50 MB and don't really go well on their own.
A couple of highlights from the conference, though I had to miss the last day.
Jayant Gupchup from Johns Hopkins gave a talk on Phoenix, an approach to reconstructing the timestamps for sensor data after the fact. The idea is to not use a time synchronization protocol, but rather have nodes log enough data that can be used for post-hoc time correction. This is an interesting problem that was motivated by their experiences running sensor nets for more than a year, in which they observed a lot of node reboots (which throw off simple timing approaches) and extended periods when there was no suitable global timebase. The Phoenix approach collects information on nodes' local timestamps and beacons from GPS-enabled nodes at the base station, and performs a time rectification technique, similar to the one we developed for correcting our volcano sensor network data. Phoenix achieves around a 1 sec data accuracy (which is acceptable for environmental monitoring) even when the GPS clock source is offline for a significant period of time.
Raghu Ganti from UIUC gave a talk on 'Privacy Preserving Reconstruction of Multidimensional Data Maps in Vehicular Participatory Sensing.' The title is a bit unwieldy, but the idea is to reconstruct aggregate statistics from a large number of users reporting individual sensor data, such as their vehicle speed and location. The problem is that users don't want to report their true speed and location, but we still want the ability to generate aggregate statistics such as the mean speed on a given road. Their approach is to add noise to each user's data according to a model that would make it difficult for an attacker to recover the user's original data. They make use of the E-M algorithm to estimate the density distribution of the data in aggregate.
Although the paper considered a number of attacks against the scheme, I was left wondering about a simple binary revelation of whether a user had recently left their home (similar to PleaseRobMe.com). One solution is to delay the data reporting, although one would be able to learn the approximate time that an individual was likely to leave home each day. The other approach is to perturb the timing data as well, but this would seem to interfere with the ability to ask questions about, say, traffic levels at certain times of day.
Finally, Christos Koninis from the University of Patras gave a talk on federating sensor network testbeds over the Internet, allowing one to run testbed experiments across multiple testbeds simultaneously, with 'virtual' radio links between nodes on different testbeds. So you could combine a run on our MoteLab testbed (around 190 nodes) with the TWIST testbed (220 nodes) to get a virtual testbed of more than 400 nodes. This is a very cool idea and potentially extremely useful for doing larger-scale sensor net experiments. Their approach involves routing data over a node's serial port through a gateway server to the other end where it is injected into the destination testbed at the appropriate point. They can emulate a given packet loss across each virtual link, not unlike Emulab. Unfortunately they did not really consider making the cross-testbed packet transmission timings realistic, so it would be difficult to use this approach to evaluate a MAC protocol or time sync protocol. It also does not properly emulate RF interference, but I think this is still a very interesting and useful ideas. Another cool aspect of this project is that they can add virtual simulated nodes to the test
bed, allowing one to run mixed-mode experiments.
"
My keynote was entitled 'The Next Decade of Sensor Networking' and I tried to argue that the field is running the risk of becoming stagnant unless we define some big research challenges that will carry us for the next decade. I've blogged about these themes here before. I delivered the talk in 'Larry Lessig' style -- having written the 'script' as an essay and then making slides to highlight the key points, rather than starting with the slides and ad libbing the voiceover as I usually do. I'll post a video here soon - the slides are more than 50 MB and don't really go well on their own.
A couple of highlights from the conference, though I had to miss the last day.
Jayant Gupchup from Johns Hopkins gave a talk on Phoenix, an approach to reconstructing the timestamps for sensor data after the fact. The idea is to not use a time synchronization protocol, but rather have nodes log enough data that can be used for post-hoc time correction. This is an interesting problem that was motivated by their experiences running sensor nets for more than a year, in which they observed a lot of node reboots (which throw off simple timing approaches) and extended periods when there was no suitable global timebase. The Phoenix approach collects information on nodes' local timestamps and beacons from GPS-enabled nodes at the base station, and performs a time rectification technique, similar to the one we developed for correcting our volcano sensor network data. Phoenix achieves around a 1 sec data accuracy (which is acceptable for environmental monitoring) even when the GPS clock source is offline for a significant period of time.
Raghu Ganti from UIUC gave a talk on 'Privacy Preserving Reconstruction of Multidimensional Data Maps in Vehicular Participatory Sensing.' The title is a bit unwieldy, but the idea is to reconstruct aggregate statistics from a large number of users reporting individual sensor data, such as their vehicle speed and location. The problem is that users don't want to report their true speed and location, but we still want the ability to generate aggregate statistics such as the mean speed on a given road. Their approach is to add noise to each user's data according to a model that would make it difficult for an attacker to recover the user's original data. They make use of the E-M algorithm to estimate the density distribution of the data in aggregate.
Although the paper considered a number of attacks against the scheme, I was left wondering about a simple binary revelation of whether a user had recently left their home (similar to PleaseRobMe.com). One solution is to delay the data reporting, although one would be able to learn the approximate time that an individual was likely to leave home each day. The other approach is to perturb the timing data as well, but this would seem to interfere with the ability to ask questions about, say, traffic levels at certain times of day.
Finally, Christos Koninis from the University of Patras gave a talk on federating sensor network testbeds over the Internet, allowing one to run testbed experiments across multiple testbeds simultaneously, with 'virtual' radio links between nodes on different testbeds. So you could combine a run on our MoteLab testbed (around 190 nodes) with the TWIST testbed (220 nodes) to get a virtual testbed of more than 400 nodes. This is a very cool idea and potentially extremely useful for doing larger-scale sensor net experiments. Their approach involves routing data over a node's serial port through a gateway server to the other end where it is injected into the destination testbed at the appropriate point. They can emulate a given packet loss across each virtual link, not unlike Emulab. Unfortunately they did not really consider making the cross-testbed packet transmission timings realistic, so it would be difficult to use this approach to evaluate a MAC protocol or time sync protocol. It also does not properly emulate RF interference, but I think this is still a very interesting and useful ideas. Another cool aspect of this project is that they can add virtual simulated nodes to the test
bed, allowing one to run mixed-mode experiments.
21. feb. 2010
CFP: IntelNet 2010
The 2010 International Workshop on Intelligent Sensor and Wireless Networks
(IntelNet 2010)
To be held in conjunction with CIT'10 (Supported by IEEE Computer
Society), June 29 - July 1, 2010, Bradford, UK
http://www.inf.brad.ac.uk/~xjin/IntelNet10/index.html
http://www.scim.brad.ac.uk/~ylwu/CIT2010/
SCOPE:
Modern sensor and wireless networks have been becoming more and more
large-scaled and
complicated. Due to their rapidly increasing scale and complexity, the
management and
maintenance of sensor and wireless networks have posed many grand challenges
to both industrial
and academic communication communities. To overcome these challenges, it is
very necessary to
find new levels of autonomy and intelligence in deploying, managing, and
maintaining sensor and
wireless networks.
The purpose of the 2010 International Workshop on Intelligent Sensor and
Wireless Networks
(IntelNet 2010) is to bring together scientists, researchers, professionals,
and practitioners from
both industry and academia to exchange ideas, discuss solutions, share
experiences, and report
state-of-the-art research results on various aspects of intelligent sensor
and wireless networks.
The topics of interest include, but are not limited to:
-- Advanced Technologies for Enabling Intelligent and Autonomic
Communications
-- Autonomy-Oriented Sensor/Wireless Networks
-- Biological, Social, and Economic Models for Intelligent Networks
-- Bio-Inspired Network Protocol Design
-- Bio-Inspired Network Services
-- Bio-Inspired Sensor/Wireless Networks
-- Characterization and Detection of Emergent Properties in
Self-Organizing Networks
-- Complex Dynamics of Autonomous Communication Networks
-- Experimental Case Studies and Testbeds of Intelligent Networks
-- Novel Design and Management Technologies for Autonomic
Sensor/Wireless Networks
-- Scalability and Complexity of Self-Organizing Communication Networks
-- Self-Organization in Autonomic Communication Networks
-- Self-Organizing, Self-Adaptive and Self-Tuning Sensor/Wireless
Networks
-- Sensing, Monitoring, Evaluation, and Measurements of Intelligent
Networks
-- Stability and Dependability of Intelligent Sensor/Wireless Networks
-- Tools and Techniques for Designing, Implementing, and Analyzing
Intelligent Sensor/Wireless Networks
STEERING COMMITTEE:
Duncan F. Gillies, Imperial College London, UK
Jiming Liu, Hong Kong Baptist University, Hong Kong
Ruqian Lu, Chinese Academy of Sciences, China
Geyong Min, University of Bradford, UK
Jie Wu, Temple University, USA
GENERAL CHAIR:
Xiaolong Jin
School of Informatics
University of Bradford
Bradford, BD7 1DP, U.K.
E-mail: x.jin@brad.ac.uk
PROGRAM CHAIRS:
Lei Liu
Department of Computing
University of Bradford
Bradford, BD7 1DP, U.K.
E-mail: l.liu6@brad.ac.uk
Hui Cheng
Department of Computer Science
University of Leicester
Leicester, LE1 7RH
U.K.
E-mail: hc118@le.ac.uk
PROGRAM COMMITTEE:
Ahmed Y. Al-Dubai, Edinburgh Napier University, UK
Canfeng Chen, Nokia Research Center, China
Jin Chen, University of Toronto, Canada
Xiaowen Chu, Hong Kong Baptist University, China
Thomas Erlebach, University of Leicester, UK
Donghai Guan, Kyung Hee University, Korea
Lin Guan, Loughborough University, UK
Yu Hua, Huazhong University of Science and Technology, China
Huan Li, University of Massachusetts, USA
Keqin Li, State University of New York at New Paltz, USA
Wei Li, Shandong University, China
Huadong Ma, Beijing University of Posts & Telecommunications, China
Jianhua Ma, Hosei University, Japan
Pascale Minet, INRIA, France
Gregorio M. Perez, University of Murcia, Spain
Qian Ren, China Mobile, China
Heung-Gyoon Ryu, Chungbuk National University, Korea
Jinglun Shi, South China University of Technology, China
Lei Shu, Osaka University, Japan
Guojun Wang, Central South University, China
Lan Wang, University of Bradford, UK
Xingwei Wang, Northeastern University, China
Jing Wu, Communications Research Centre, Canada
Weigang Wu, Sun Yat-sen University, China
Bin Xiao, Hong Kong Polytechnic University, Hong Kong
Tao Xie, San Diego State University, USA
Bo Yang, University of Electronic Science and Technology of China,
China
Laurence T. Yang, St Francis Xavier University, Canada
Shengxiang Yang, University of Leicester, UK
Mei Yu, Tianjin University, China/Simula Research Laboratory, Norway
Jun Zhang, Sun Yat-sen University, China
Yan Zhang, Simula Research Laboratory, Norway
PAPER SUBMISSION:
Authors are invited to submit manuscripts reporting original unpublished
research and recent
developments in the topics related to the workshop. The length of the papers
should not
exceed 6 pages + 2 pages for overlength charges (IEEE Computer Society
Proceedings
Manuscripts style: two columns, single-spaced), including figures and
references, using 10
fonts, and number each page. Papers should be submitted electronically in
PDF format by
sending it as an e-mail attachment to Xiaolong Jin (x.jin@bradford.ac.uk).
All papers will be
peer reviewed and the comments will be provided to the authors. The accepted
papers will
be published together with those of other workshops by the IEEE Computer
Society Press.
Distinguished papers, after further extensions, will be published in CIT
2010's special issues of
the following prestigious SCI-indexed journals:
-- The Journal of Supercomputing - Springer
-- Journal of Computer and System Sciences - Elsevier
-- Concurrency and Computation: Practice and Experience - John Wiley & Sons
IMPORTANT DATES:
Submission Deadline: March 15, 2010
Author Notification: April 2, 2010
Final Manuscript Due: April 18, 2010
Registration Due: April 18, 2010
Conference Date: June 29 - July 1, 2010
An Operating System for 'The Internet of Things'
An Operating System for 'The Internet of Things': "[Akiba] Hmmm...someone at Vertoda needs to configure their Joomla install to make their titles clickable. There's no way to get to the direct link to the article. Here's the link to the main blog page which has the article at the moment...[/Akiba] TinyOS (http://www.tinyos.net (http://www.tinyos.net/)) is the original and probably best well known operating system (OS) for the sensor nodes that make up Wireless Sensor Networks (WSNs). Sun Microsystems has also developed Java based sensors using the Squawk Virtual Machine..."
6LoWPAN lecture slides available
6LoWPAN lecture slides available: "
"
Today I released our 6LoWPAN lecture slides on 6lowpan.net:
“The companion lecture slides for 6LoWPAN: The Wireless Embedded Internet have now been released on The Book page of 6lowpan.net. This first part of the book’s course material includes a suggested course syllabus, and 115 of lecture slides in both PowerPoint and PDF formats. This overview of the book is a good tool for lecturers, students and professionals alike. The slides have been released under a creative commons by-nc-sa license to encourage re-use. The companion exercise slides for Contiki are planned for release in the near future.”
Links to the syllabus and lecture slides:
6LoWPAN Book Course Syllabus (PDF)
6LoWPAN Book Lecture Slides (PPT)
6LoWPAN Book Lecture Slides (PDF)
"
20. feb. 2010
Zigbee Network Layer Tutorial - Part 3: Broadcasts and Neighbors
Zigbee Network Layer Tutorial - Part 3: Broadcasts and Neighbors: "I thought I would spend this portion of the series discussing some of the more detailed parts of the data path. Since the tree (index.php/Articles/Zigbee/Zigbee-Tree-Routing-How-It-Works-and-Why-It-Sucks.html) and mesh (index.php/Articles/Zigbee/zigbee-mesh-routing-interactive-tutorial.html) routing is already explained in other articles, I’d like to talk about the other two forwarding methods: broadcasting and the neighbor table. For those new to the Zigbee spec and trying to implement the broadcast functionality, it can be pretty confusing. At least it was for me when I had..."
Zigbee Network Layer Tutorial - Part 2: The Rx Data Path
Zigbee Network Layer Tutorial - Part 2: The Rx Data Path: "I left off last time explaining the transmit data path side of the Zigbee networking layer. The receive data path is fairly similar, but there are some minor complications. When a frame arrives over the air, the radio driver will take it out of the buffer and store it somewhere. It should then signal the next higher layer (in this case the MAC) to retrieve the frame. Incidentally, this part of incoming data handling is common to just about every..."
Zigbee Network Layer Tutorial - Part 1: The Tx Data Path
Zigbee Network Layer Tutorial - Part 1: The Tx Data Path: "I've been meaning to get around to this for a while now, but things have been so busy that I just haven't had the time. Or maybe I was just too lazy. In any case, today is a good time to kick off a series detailing the Zigbee NWK layer, mostly because I caught a cold and it pretty much rendered me useless for any heavy thinking. I know it's a bit late to start a series on the..."
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