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    Enhanced master-slave time synchronization architecture for wireless sensor networks

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    TimeSync+Paper+2006.pdf (103.8Kb)
    Date
    2006-12-03
    Author
    Mirembe, Drake Patrick
    Otto, Francis
    Olule, Elizabeth
    Ouyang, Song
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    Abstract
    A number of time synchronization protocols for Wireless Sensor Networks rely on a single (master) node as source of reference time by which other (slave) nodes can be synchronized. Although the amount of overhead is greatly reduced, this is not a reliable technique since the master’s availability is not guaranteed. In this paper we address the issue of availability of the master node in a master-slave based time synchronization technique. We explore the use of a second node as a standby node that can takeover the role of the default master in case of its failure. Our proposed architecture provides for automatic master node failure detection and a mechanism that enables the second master to take over the role before the rest of the nodes on the network are affected by the failure.
    URI
    http://hdl.handle.net/10570/836
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