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MAAS : Multibit Adaptive Aggregation Scheme for wireless sensor networks

DSpace at IIT Bombay

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Title MAAS : Multibit Adaptive Aggregation Scheme for wireless sensor networks
 
Creator JAGYASI, BG
CHANDER, D
MERCHANT, SN
DESAI, UB
DEY, BK
 
Subject distributed detection
multiple sensors
data fusion
adaptive distributed detection
aggregation scheme
wireless sensor network
multibit aggregation
data fusion
 
Description The problem of data aggregation for binary event detection using wireless sensor networks has been considered in the present work. We propose a novel Multibit Adaptive Aggregation Scheme (MAAS) which combines the merits Of both multibit and adaptive aggregation schemes. Firstly, being adaptive, the proposed scheme does not require knowledge of the performance indices of sensor nodes as required by the existing optimum decision fusion rule. Therefore, in case of small variations in the topology or performance indices, the proposed scheme needs to just fine time the weights starting from the previously adapted weights, instead of seeking new values of the parameters or recomputing the initial setup. Secondly, being a multibit aggregation scheme, the performance of the proposed MAAS is higher than the existing single-bit aggregation schemes at a cost of communicating only a few extra bits. This makes it suitable for event detection applications where detection accuracy is more important than the energy drained in communicating a few additional bits. Further the performance of the proposed MAAS is shown to be consistently superior to single-bit schemes even in the presence of Rayleigh fading channel.
 
Publisher IEEE
 
Date 2011-10-26T01:40:31Z
2011-12-15T09:12:16Z
2011-10-26T01:40:31Z
2011-12-15T09:12:16Z
2008
 
Type Proceedings Paper
 
Identifier 2008 International Conference on Telecommunications, Vols 1 and 2,360-366
978-1-4244-2035-3
http://dspace.library.iitb.ac.in/xmlui/handle/10054/15874
http://hdl.handle.net/100/2565
 
Source International Conference on Telecommunications,St Petersburg, RUSSIA,JUN 16-19, 2008
 
Language English