Creating and sharing knowledge for telecommunications

Project: Prototypes for Efficient Energy Self-sustainable Wireless Sensor Networks

Acronym: PROENERGY-WSN
Main Objective: The main challenge is the development of an energy self-sustainable wireless sensor network formed by nodes with energy scavenging capabilities. Body and movement energy scavenging will be considered whilst maximizing the energy efficiency. One of the bottlenecks of the wireless sensor devices performance is the batteries and energy storage. For indoor environments, rechargeable batteries may be the solution, although recharging the batteries may be burdensome especially for the elderly people. As solar cells are not viable with body-worn sensor nodes (because sensors are preferred to be placed under the clothing), motion and body heat based energy harvesting techniques should be investigated for healthcare and body monitoring systems.
The main challenge is the development of an energy self-sustainable wireless sensor network formed by nodes with energy scavenging capabilities. Body and movement energy scavenging will be considered whilst maximizing the energy efficiency. One of the bottlenecks of the wireless sensor devices performance is the batteries and energy storage. For indoor environments, rechargeable batteries may be the solution, although recharging the batteries may be burdensome especially for the elderly people. As solar cells are not viable with body-worn sensor nodes (because sensors are preferred to be placed under the clothing), motion and body heat based energy harvesting techniques should be investigated for healthcare and body monitoring systems.
Besides these Wireless Body Area Network (WBAN) aspects, contributions will be given on the development and experimental verification of a hardware solution for WSN protocol performance evaluation. This study relates to the modelling and experimental evaluation of WSN routing and link layer protocols with no degradation in the sensor nodes performance. Two contention-based WSN MAC protocols will be compared via modelling, simulation and hardware experimental measurement approaches. Not only will the energy spending be addressed, but also throughput, packet delivery rate, and end-to-end delay. Routing protocols that save energy are also aimed at, and different QoS metrics will also be considered, trying to reach a solution that uses the least energy possible, while delivering all the packets with a very low latency. Aspects of hybrid energy storage will be considered both in the simulations and hardware verification, envisaging the improvements to be achieved for the network protocol proposal.
Reference: PTDC/EEA-TEL/122681/2010
Funding: FCT/PTDC
Start Date: 01-01-2012
End Date: 01-02-2015
Team: Fernando Jose da Silva Velez, Nuno Miguel Gonçalves Borges de Carvalho, Pedro Renato Tavares Pinho, , João M. Ferro, Luís Miguel Moreira Borges, Norberto José Gil Barroca
Groups: Radio Systems – Lx, Radio Systems – Av
Partners: Unidade de Investigação e Desenvolvimento Materiais Têxteis e Papeleiros (UBI)
Local Coordinator: Fernando Jose da Silva Velez
Links: http://www.e-projects.ubi.pt/proenergy-wsn/
Associated Publications