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9260 Cluster-based service discovery for heterogeneous wireless sensor networks
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Marin-Perianu, R.S. and Scholten, J. and Havinga, P.J.M. and Hartel, P.H. (2007) Cluster-based service discovery for heterogeneous wireless sensor networks. Technical Report TR-CTIT-07-05, Centre for Telematics and Information Technology University of Twente, Enschede. ISSN 1381-3625

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We propose an energy-efficient service discovery protocol for heterogeneous wireless sensor networks.
Our solution exploits a cluster overlay, where the clusterhead nodes form a distributed service
registry. A service lookup results in visiting only the clusterhead nodes. We aim for minimizing the
communication costs during discovery of services and maintenance of a functional distributed service
registry. To achieve these objectives we propose a clustering algorithm which makes decisions
based on 1-hop neighbourhood information, avoids chain reactions and constructs a set of sparsely
distributed clusterheads. We analyse how the properties of the clustering structure influence the
performance of the service discovery protocol, by comparing our proposed clustering algorithm with
DMAC. We evaluate the performance and the tradeoffs between the cluster-based service discovery
approaches and the traditional flood-based solutions. We investigate the level of network heterogeneity
where clustering is feasible for implementation in a wireless sensor network. Our analysis shows
that cluster-based solutions are best suited for heterogeneous dense networks, with limited dynamics.

Item Type:Internal Report (Technical Report)
Research Group:EWI-DIES: Distributed and Embedded Security, EWI-CAES: Computer Architecture for Embedded Systems
Research Program:CTIT-WiSe: Wireless and Sensor Systems
Research Project:Smart Surroundings
ID Code:9260
Deposited On:01 February 2007
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