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Reliable Data Forwarding for Delay Constraint Wireless Sensor Networks

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4 Author(s)
Taddia, C. ; ENDIF Dept., Univ. of Ferrara, Ferrara ; Mazzini, G. ; Chahine, M.K. ; Shahin, K.

Many applications for wireless sensor networks require immediate and guaranteed actions; data have to be transported reliably and in time through the network towards the final sink. In this work we focus our attention on the control of data transport delay and reliability in a multihop scenario. We investigate and show some trade-offs between the delay and the energy consumption required by cooperative and non cooperative ARQ techniques. In particular we describe a mathematical model to calculate the delay necessary to correctly deliver a packet to the destination (sink) through the multihop path and we give close form expressions for the delay in some particular topologies.

Published in:

Information and Communication Technologies: From Theory to Applications, 2008. ICTTA 2008. 3rd International Conference on

Date of Conference:

7-11 April 2008

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