2007 Proceeding- General Chair:
- Cormac J. Sreenan
Welcome to the Fourth Workshop on Embedded Networked Sensors (EmNets 2007).
EmNets this year follows the same format as in 2006, with short 5-page papers offering position statements, reports on early work, and details of experiments and experiences. The goal is to allow timely dissemination of recent research, and to initiate discussion among workshop attendees and the community as a whole by actively promoting groundbreaking work that raises key research questions.
The EmNets program committee received 48 excellent submissions. These were single-blind reviewed by the members of the technical program committee (TPC), yielding 3-4 reviews per paper. As sensor networks gain traction, practical commercial perspectives have become very relevant, hence we recruited half of our TPC from industry this year. Papers were discussed at a TPC meeting at the MIT Media Lab on April 24th and 18 were accepted, giving an acceptance rate of 37.5%.
This year, EmNets is being held in Europe for the first time. The decision to do so reflects the vibrant and excellent sensor network research in Europe: of the 18 accepted papers, 12 are from Europe, 5 are from the United States, and 1 is from Australia. Holding EmNets in Ireland taps into an impressive and diverse range of high-quality Irish research in this area, strongly encouraged by recent national funding initiatives. Our program includes two stimulating keynote speeches, which together demonstrate how collaboration and cross-pollination between industry and academia is important in emerging fields. The first, by Frank Schmidt, provides an industrial perspective, describing experiences in applying energy harvesting to large volume applications. The second, by Ramesh Govindan, provides an academic perspective on the challenges in building general sensor software systems that can be reused in a range of deployments.
Proceeding Downloads
PermaSense: investigating permafrost with a WSN in the Swiss Alps
Currently, there is a lack of stand-alone geo-monitoring systems for harsh environments that are easy to configure, deploy and manage, while at the same time adhering to science grade quality requirements. In a joint computer and geoscience project we ...
Image browsing, processing, and clustering for participatory sensing: lessons from a DietSense prototype
Imagers are an increasingly significant source of sensory observations about human activity and the urban environment. ImageScape is a software tool for processing, clustering, and browsing large sets of images. Implemented as a set of web services with ...
Sensor networks in Telecare
This paper discusses the results obtained from a sensor network installed in a person's home as part of a twelve month Telecare trial. The aim of the trial was to unobtrusively collect data to detect changes in a person's daily activity (washing, eating,...
SeeDTV: deployment-time validation for wireless sensor networks
Deployment of a wireless sensor network (WSN) system is a critical step because theoretical models and assumptions often differ from real environmental characteristics and performance at the deployment site. In addition, such systems are often located ...
Software-based on-line energy estimation for sensor nodes
Energy is of primary importance in wireless sensor networks. By being able to estimate the energy consumption of the sensor nodes, applications and routing protocols are able to make informed decisions that increase the lifetime of the sensor network. ...
Long-duration solar-powered wireless sensor networks
This paper discusses hardware design principles for long-term solar-powered wireless sensor networks. We argue that the assumptions and principles appropriate for long-term operation from primary cells are quite different from the solar power case with ...
Ambient beacon localization: using sensed characteristics of the physical world to localize mobile sensors
There is a growing need to support localization in low-power mobile sensor networks, both indoors and outdoors, when mobile sensor nodes (e.g., mote class) are incapable of independently estimating their location (e.g., when GPS is inappropriate or too ...
Sensor node localisation using a stereo camera rig
- Dermot Diamond,
- Noel E. O'Connor,
- Alan F. Smeaton,
- Stephen Beirne,
- Brian Corcoran,
- Philip Kelly,
- King Tong Lau,
- Roderick Shepherd
In this paper, we use stereo vision processing techniques to detect and localise sensors used for monitoring simulated environmental events within an experimental sensor network testbed. Our sensor nodes communicate to the camera through patterns ...
Robust node localization for wireless sensor networks
The node localization problem in Wireless Sensor Networks has received considerable attention, driven by the need to obtain a higher location accuracy without incurring a large, per node, cost (dollar cost, power consumption and form factor). Despite ...
Orient-2: a realtime wireless posture tracking system using local orientation estimation
A realtime posture tracking system has been developed using a network of compact wireless sensor devices worn by the user. Each device is a complete inertial/magnetic tracking unit which performs in situ orientation estimation based on its own sensor ...
An HMM framework for optimal sensor selection with applications to BSN sensor glove design
Laparoscopic surgical training is a challenging task due to the complexity of instrument control and demand on manual dexterity and hand-eye coordination. Currently, training and assessing surgeons for their laparoscopic skills rely mainly on subjective ...
Acoustic laptops as a research enabler
The Acoustic ENSBox [1] is an embedded platform which enables practical distributed acoustic sensing by providing integrated hardware and software support in a single platform. It provides a highly accurate acoustic self-calibration system which ...
Reception region characterisation using a 2.4GHz direct sequence spread spectrum radio
Experimental studies on Wireless Sensor Networks (WSNs) have revealed the existence of three distinct reception regions. These regions can be classified as connected, transitional, and disconnected. Their location and size may have a significant impact ...
The development of environmentally tested antennas for wireless sensor networks
Wireless Sensor networks (WSNs) are often viewed as providing solutions to the problems inherent in monitoring large areas over a long time-scale. As such they are often envisaged for use in unstable or harsh environments, such as outdoors or on factory ...
The 6LoWPAN architecture
6LoWPAN is a protocol definition to enable IPv6 packets to be carried on top of low power wireless networks, specifically IEEE 802.15.4. The concept was born from the idea that the Internet Protocol could and should be applied to even the smallest of ...
Shaping TinyOS to deal with evolving device architectures: experiences porting TinyOS-2.0 to the Chipcon CC2430
This paper outlines the issues involved and difficulties encountered porting TinyOS to the CC2430 System-on-Chip platform. Core issues that limit the portability of TinyOS-2.x are identified, and suggestions made as to how these might be addressed. ...
Adding preemption to TinyOS
Event-driven operating systems such as TinyOS are the preferred choice for wireless sensor networks. Alternative designs such as MANTIS following a classical multi-threaded approach are also available. Event-based systems are generally more energy ...
Increasing the reliability of wireless sensor networks with a distributed testing framework
Designing Wireless Sensor Networks (WSNs) has proven to be a slow, tedious and error-prone process due to the inherent intricacies of designing a distributed, wireless, and embedded system. A systematic design approach accompanied by a test methodology ...