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Cluster-based multi-channel system for improving performance of large-scale wireless multi-sink sensor networks

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3 Author(s)
Kone, C.T. ; Res. Centre for Autom. Control of Nancy (CRAN), Nancy-Univ., Vandœuvre-lès-Nancy, France ; David, M. ; Lepage, F.

This paper presents a simple and distributed clustering algorithm suitable for large-scale wireless sensor networks (WSNs) consisting of several thousands of sensor nodes and few sink nodes. A two-tiered hierarchical architecture is used to increase scalability and ensure performances and durability of such a system: Level 1 called sensor network is partitioned into several equilibrate clusters with one leader or sink by cluster; Level 2 also called sink network is composed by N sinks nodes placed in planned manner into monitored region and is connected through IEEE 802.11 radio interfaces. A multi-channel system is used to create a cellular structure by assigning one frequency channel per cluster. We use simulation technique to evaluate and compare the impact of two distributed schemes (a single channel one and a multi-channel one) on network capacity like traffic load, energy consumption, medium access delay, end-to-end delay and data delivery ratio.

Published in:

Future Computer and Communication (ICFCC), 2010 2nd International Conference on  (Volume:3 )

Date of Conference:

21-24 May 2010