Timing and radius considerations for maintaining connectivity QoS

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Title: Timing and radius considerations for maintaining connectivity QoS
Authors: Tynan, Richard
O'Hare, G. M. P. (Greg M. P.)
O'Grady, Michael J.
Muldoon, Conor
Permanent link: http://hdl.handle.net/10197/2440
Date: 25-May-2010
Abstract: Given the potential scale on which a Wireless Sensor Network (WSN) can be deployed, multi-hop communication will be a pivotal component of the system. When redundant nodes are deployed, which are hibernated opportunistically to conserve energy, it is crucial that sub-graphs of the network are not disconnected by the hibernation of a node. In order to ensure connectivity is preserved for all nodes in the area, a protocol is required that oversees routing integrity is maintained. Since this routing topology must be present at all times, this set represents the minimum number of nodes that must be active at any given time for a functioning network. In this paper, the performance of such a protocol is evaluated, in terms of message delivery and node lifetime for various timing and radius parameters. The selection of these, control the potential energy conserved by the nodes through the hibernation process, which can increase operational longevity. In addition, the radius governs the networks resilience to expired nodes, while timing parameters manage the responsiveness of the topology to failed and exhausted sensors. In this paper, we demonstrate the trade-offs that exist when selecting specific values for these variables as well as the impact these have on a number of Quality of Service (QoS) metrics for WSN performance, namely longevity and message delivery.
Funding Details: Science Foundation Ireland
Type of material: Conference Publication
Publisher: IEEE Computer Society
Copyright (published version): IEEE 2010
Keywords: Wireless sensor networkWSNMulti-hopQuality of service
Subject LCSH: Wireless sensor networks
Computer network protocols
Wireless sensor nodes
DOI: 10.1109/MDM.2010.96
Language: en
Status of Item: Peer reviewed
Is part of: The Eleventh International Conference on Mobile Data Management MDM 2010 : proceedings
Conference Details: The First International Workshop on QoS enabled Sensor Networks (QoS2N), in conjunction with the 11th International Conference on Mobile Data Management (MDM's 10), Kansas City, May 23-26, 2010
Appears in Collections:CLARITY Research Collection
Computer Science Research Collection

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