Abstract

Energy efficiency represents one of the primary challenges in the development of wireless sensor networks (WSNs). Since communication is the most power consuming operation for a node, many current energy-efficient protocols are based on duty cycling mechanisms. However, most of these solutions are expensive from both the computational and the memory resources point of view and; therefore, they result in being hardly implementable on resources constrained devices, such as sensor nodes. This suggests to combine new communication protocols with hardware solutions able to further reduce the nodes’ power consumption. In this work, a cross-layer solution, based on the combined use of a duty-cycling protocol and a newkind of active wake-up circuit, is presented and validated by using a test bed approach.The resulting solution significantly reduces idle listening periods by awakening the node only when a communication is detected. Specifically, an MAC scheduler manages the awakenings of a commercial power detector connected to the sensor node, and, if an actual communication is detected, it enables the radio transceiver. The effectiveness of the proposed cross-layer protocol has been thoroughly evaluated by means of tests carried out in an outdoor environment.

Autore Pugliese

• Patrono Luigi , Catarinucci Luca , Mainetti Luca

Tutti gli autori

• CATARINUCCI L. , COLELLA R. , DEL FIORE G. , MAINETTI L. , MIGHALI V. , PATRONO L. , STEFANIZZI M.L.

Titolo volume/Rivista

INTERNATIONAL JOURNAL OF DISTRIBUTED SENSOR NETWORKS

Anno di pubblicazione

2014

ISSN

1550-1329

ISBN

Non Disponibile

Numero di citazioni Wos

Nessuna citazione

Ultimo Aggiornamento Citazioni

Non Disponibile

Numero di citazioni Scopus

27

Ultimo Aggiornamento Citazioni

28/04/2018

Settori ERC

Non Disponibile

Codici ASJC

Non Disponibile