Title :
Collaborative sequential-based detection in wireless sensor networks
Author :
Sabina Zejnilović;Joao Pedro Gomes;Bruno Sinopoli
Author_Institution :
Department of Electrical and Computer Engineering, Carnegie Mellon University, 5000 Forbes Ave, Pittsburgh, PA 15213, USA
Abstract :
Due to limited power resources, energy efficiency is an important aspect of detection in wireless sensor networks. We propose a collaborative detection scheme, based on sequential hypothesis testing, where a randomly chosen node may initiate a collaboration, collecting observations from neighboring nodes to test the hypotheses. Our simulation results show that for large networks and high SNR, the proposed scheme leads to lower communication cost and similar performance when compared to a standard detection setup, where all the observations are collected in a fusion node. We also examine how the energy efficiency of this scheme evolves as a function of the network structure.
Keywords :
"Collaboration","Wireless sensor networks","Signal to noise ratio","Testing","Network topology","Monitoring","Wireless communication"
Conference_Titel :
Signals, Systems and Computers (ASILOMAR), 2011 Conference Record of the Forty Fifth Asilomar Conference on
Print_ISBN :
978-1-4673-0321-7
Electronic_ISBN :
1058-6393
DOI :
10.1109/ACSSC.2011.6189956