DSpace
 

DSpace at IIT Bombay >
IITB Publications >
Proceedings papers >

Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/100/2520

Title: Weighted aggregation scheme with lifetime-accuracy tradeoff in wireless sensor network
Authors: JAGYASI, BG
DEY, BK
MERCHANT, SN
DESAI, UB
Keywords: distributed detection
multiple sensors
Issue Date: 2006
Publisher: IEEE
Citation: Fourth International Conference on Intelligent Sensing and Information Processsing, Proceedings,31-36
Abstract: We consider design of wireless sensor network for event detection application. An MMSE based q-bit weighted aggregation scheme (q-WAS) is proposed in which each node transmits q bits to its parent in every session. The observation of each sensor is assumed to be one bit. The simulation results sow that 1-WAS achieves better accuracy than a previously proposed one bit aggregation scheme while offering almost same lifetime. With increasing q, the accuracy of q-WAS approaches that of the infinite precision aggregation scheme. Moreover the lifetime for q-WAS is significantly higher than infinite precision aggregation scheme. For a 100 node sensor network, the simulation results show that 3-WAS achieves a near optimum accuracy. The lifetime of the q-WAS is approximately 1/q-th of the lifetime of the one bit aggregation schemes. Hence this class of aggregation schemes offers a trade-off between accuracy and lifetime.
URI: http://dspace.library.iitb.ac.in/xmlui/handle/10054/15970
http://hdl.handle.net/100/2520
ISBN: 978-1-4244-0611-1
Appears in Collections:Proceedings papers

Files in This Item:

There are no files associated with this item.

View Statistics

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback