Wireless Sensor Networks Studies and experiences at ISMB Torino, Italy Edoardo Calia [email protected] Human Factors and the Digital Home Workshop ETSI, Sophia Antipolis, 22 October 2004
Jan 21, 2016
Wireless Sensor NetworksStudies and experiences at ISMB Torino, Italy
Edoardo Calia [email protected]
Human Factors and the Digital Home WorkshopETSI, Sophia Antipolis, 22 October 2004
ISMB
• A research institution within the Torino Wireless high-tech district
• 8 Technology labs: photonics, EMC and Antennas, Telecommunications, Networking, e-security, Services and Applications, Navigation services, Microsystems and materials
• Joint management ISMB/Politecnico di Torino• 150 researchers (50 from ISMB, 100 from
Politecnico)
Wireless Sensor Networks at ISMB
• One of the most recent research areas, started at the end of 2003
• Activities performed within the Networking Lab and the Services and Applications Lab
• Cooperation with Politecnico di Torino Electronics and Computer Science departments
WSN as a “horizontal” technology
• Extremely interesting because application fields have been tested for years using wired sensor networks
• Wide number of application areas• We focus on: automotive, home
automation, e-health• Partnership with industries (STM, FIAT
Research, Motorola, Intel), Utilities and services, Public Administration
Studies at ISMB/Politecnico
• Modeling of nodes and communication channel (Politecnico)
• Simulation of nodes and communication channel (ISMB, Politecnico)
• Location services (ISMB)
• Application development (Politecnico)
• Power management (Politecnico, ISMB)
• Power-aware routing (ISMB)
Studies at ISMB on WSN• Labs Involved:
– Networking– Wireless Technologies for Multimedia
• Research Topics:– Technologies
• Energy-aware Routing (on going)• Nodes Localization (on going)• Location-aware Routing (planned, as a combination of above topics)• Network Synchronization (planned)
– Applications• Specific topics in the automotive area (on going)
• Platforms: – Crossbow WSNs (MICA2 and MICA2DOT motes)– Own simulation tools– WLAHN
M. A. Spirito / ISMB
Energy-aware Routing in WAHSNs
• Objectives: – Gain hands-on expertise on state-of –the-art WAHSN platforms– Address a representative energy-aware functionality for WAHSNs:
routing– Experimental activities from the beginning
• Status: – Gained expertise on XBow development environment, including TinyOS
operating system, NesC programming language, TinyDb application– Analyzed current XBow design choices, in particular ad-hoc networking
(discovery, network construction, routing, etc.)– NesC implementation of an energy-aware routing algorithm on XBow
platform– Performance are currently being evaluated
• Next steps: – Comparison of current energy-aware solution with existing solutions– Refinement of current energy-aware solution/implementation of
alternative strategies– Introduction of location-awareness
M. A. Spirito / ISMB
Nodes Localization in WAHSNs• Objectives:
– Develop robust and distributed algorithms for location estimation of nodes in a wireless ad-hoc (sensor) network
– Algorithms should not depend on the physical layer technology – Algorithms should work also in absence of anchor nodes– Start with analytical/simulations studies
• Status: – Few state-of-the-art location algorithms evaluated– Simulation environment built– Some algorithms, among the most promising ones, implemented in the
simulator– Preliminary analysis of algorithms performance carried out– Improvements to algorithms currently being implemented
• Next steps:– Continue comparison between algorithms – Implementation of algorithms on real platforms (WAHSNs? WLAHNs?)– Combination with routing
M. A. Spirito / ISMB
Practical experiences at ISMB
• First technology investigated: XBOW motes (pre-ZigBee)
• Open OS and application code allows testing and experimenting of new algorithms and solutions
• Experiments on power-aware routing: routing algorithm augmented with knowledge about the battery level available at potential next hops
• Localization algorithms: simulation using laptops due to the high computing power required
• Relative location estimation (no anchor point)
XBOW Motes
Practical experiences at ISMB
• E-health remote monitoring project• Non-invasive solution to keep under control
several parameters of the health status of elder people
• Wearable watch-like device including temperature, acceleration, light and pressure sensors
• Wireless communication to a residential gateway connected over the Internet to a service center
• Demonstration involving 50 devices in 2005• Partly funded by Regione Piemonte
Remote Monitoring
A student WSN lab
• Agreement with Intel Research to set up a student lab within the Networking lab at ISMB (nov-dec 2004)
• Access to students working at their MS degree and PhD program
• Focused on Wireless Sensor Networks/ XBOW• Participation of University of Turin, Politecnico di
Torino, Telecom Italia Lab, ISMB• Not an IP-oriented Lab, even though this could
be an evolution of cooperation with Intel if the student lab works out well