Wireless Sensor Networks
Wireless Sensor Networks Download Area
Below you can find various material (software, experimental data, documentation, etc.) related to our research on Wireless Sensor and Actuator Networks.
RSSI data sets for multichannel RSSI-based ranging
Type: Experimental data
Description: This archive contains five matlab files that collect the RSSI measurements performed with TmoteSky sensors in different scenarios, namely Aisle, Desk, Lab, outdoor and Room. A PDF documents describes the scenarios and the data format.
Credits: SIGNET lab: Andrea Bardella, Andrea Zanella, Francesco Zorzi
Getting started with TinyOS
Type: TinyOS v1 – tutorial
Description: Here some useful links for the newbies…
SYNAPSE++: a System for Reprogramming Wireless Sensor Networks based on Fountain Codes
Type:TinyOS v2 – source code
Description:Below you can find the TinyOS 2 source code of our SYNAPSE++ reprogramming system for wireless sensor networks (WSNs). SYNAPSE++ is a system for reprogramming over the air WSNs. In contrast to previous solutions, which implement plain NACK-based ARQ strategies, SYNAPSE++ adopts a more sophisticated error recovery approach exploiting rateless Fountain Codes (FCs). This allows it to scale considerably better in dense networks and to better cope with noisy environments. In order to speed up the decoding process and decrease its computational complexity, we engineered the FC encoding distribution through an original genetic optimization approach. Further, novel channel access and pipelining techniques have been jointly designed so as to fully exploit the benefits of Fountain Codes, mitigate the hidden terminal problem and reduce the number of collisions. All of this makes it possible for SYNAPSE++ to recover data over multiple hops through overhearing by limiting, as much as possible, the number of explicit retransmissions. We finally created new bootloader and memory management modules so that SYNAPSE++ could disseminate and load program images written using any language.
A previous version of this software is described in our IEEE SECON 2008 paper. However, SYNAPSE++ has many additional features with respect to its predecessor. In detail:
- It implements an advanced pipelining strategy (for improved performance over multiple hops), optimized in conjunction with the selected fountain code.
- Fountain codes and pipelining were jointly optimized so that data blocks can be recovered (with high probability) through overhearing; thus limiting as much as possible the need for explicit retransmissions.
- The dissemination protocol was re-designed according to a novel pseudo-TDMA scheme, integrated with pipelining and rateless codes. This reduces the hidden terminal problem, limits the number of collisions among control messages and facilitates advancement towards unexplored portions of the network.
- The bootloader was modified so that SYNAPSE++ can disseminate and load applications written in any language or O.S.
- Michele Rossi, Nicola Bui, Giovanni Zanca, Luca Stabellini, Riccardo Crepaldi and Michele Zorzi, SYNAPSE++: Code Dissemination in Wireless Sensor Networks using Fountain Codes, IEEE Transactions on Mobile Computing. Accepted for Publication.
- Michele Rossi, Giovanni Zanca, Luca Stabellini, Riccardo Crepaldi, Albert F. Harris III, and Michele Zorzi, SYNAPSE: A Network Reprogramming Protocol for Wireless Sensor Networks using Fountain Codes, IEEE SECON 2008, San Francisco, California, US. June 16-20, 2008.
- Nicola Bui, Cristiano Tapparello, Michele Rossi and Michele Zorzi, Reprogramming over the Air and Sensor Island Management through SYNAPSE++, Demo Abstract, IEEE SECON, Rome, Italy. June 22-26, 2009.
- Riccardo Crepaldi, Albert F. Harris III, Michele Rossi, Giovanni Zanca and Michele Zorzi, Fountain Reprogramming Protocol: a Reliable Data Dissemination Scheme for Wireless Sensor Networks Using Fountain Codes, Demo Abstract, ACM SenSys, Sydney, Australia. Nov. 6-9, 2007.
CCMR (Cost and Collision Minimizing Routing)
Type: TinyOS v1 – source code
Description: CCMR is a lightweight integrated MAC/routing scheme for wireless sensor networks. This version of the software was written for the EYESIFXv2 sensor nodes, developed by Infineon Technologies. The full description of the protocol as well as of the mathematical analysis behind it can be found here: INFOCOM 2007 paper.
Credits: SIGNET lab: Nicola Bui, Riccardo Crepaldi, Michele Rossi
Download Download source in tar.gz format
RSSI measurements for indoor WSN
Type: Experimental data
Description: We collected a large set of experimental RSSI measurements for our sensor nodes (IFX-Eyes and Tmote-Sky) in different environments. You can download all such data, together with the description of the experimental settings and a short description of the platforms.
Credits: SIGNET lab: Giovanni Zanca, Francesco Zorzi, Andrea Bardella, Andrea Zanella
- README file
- TmoteSKY measures
- 2008: SIGNET lab scenario
- EyesIFX measures
- 2008: SIGNET lab scenario
- 2008: Corridor scenario