Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.22/3867
Título: Efficient aggregate computations in large-scale dense WSN
Autor: Pereira, Nuno
Gomes, Ricardo
Andersson, Björn
Tovar, Eduardo
Data: 2009
Editora: IEEE
Relatório da Série N.º: Real-Time and Embedded Technology and Applications Symposium;
Resumo: We focus on large-scale and dense deeply embedded systems where, due to the large amount of information generated by all nodes, even simple aggregate computations such as the minimum value (MIN) of the sensor readings become notoriously expensive to obtain. Recent research has exploited a dominance-based medium access control(MAC) protocol, the CAN bus, for computing aggregated quantities in wired systems. For example, MIN can be computed efficiently and an interpolation function which approximates sensor data in an area can be obtained efficiently as well. Dominance-based MAC protocols have recently been proposed for wireless channels and these protocols can be expected to be used for achieving highly scalable aggregate computations in wireless systems. But no experimental demonstration is currently available in the research literature. In this paper, we demonstrate that highly scalable aggregate computations in wireless networks are possible. We do so by (i) building a new wireless hardware platform with appropriate characteristics for making dominance-based MAC protocols efficient, (ii) implementing dominance-based MAC protocols on this platform, (iii) implementing distributed algorithms for aggregate computations (MIN, MAX, Interpolation) using the new implementation of the dominance-based MAC protocol and (iv) performing experiments to prove that such highly scalable aggregate computations in wireless networks are possible.
Peer review: yes
URI: http://hdl.handle.net/10400.22/3867
ISBN: 978-0-7695-3636-1
ISSN: 1545-3421
Versão do Editor: http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=4840592
Aparece nas colecções:ISEP – CISTER – Artigos

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