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The Trustful Space-Time Protocol (TSTP) allows for time synchronization to be performed upon receiving any message from another node in a sensor network, removing the need for explicit synchronization messages. Previous work has shown that TSTP performs well under controlled experimental environments. In this work, we analyze how the quality of synchronization in TSTP is affected when nodes are communicating...
Time synchronization is a keystone of Wireless Sensor Networks (WSN). It is fundamental to coordinate the action of nodes in a network and it is also a critical element of several security mechanisms. In this paper, we discuss and evaluate the time synchronization strategy behind the Trustful Space-Time Protocol (TSTP), which explores the protocol's cross-layer architecture to speculatively peek through...
Embedded software often needs to be ported from one system to another. This may happen for a number of reasons among which are the need for using less expensive hardware or the need for extra resources. Application portability can be achieved through an architecture-independent software/hardware interface. This is not a straight-forward task in the realm of embedded systems, since they often have...
Due to modularity and heterogeneity in Wireless Sensor Networks sensing devices, a sensor application developed for a given platform will seldom be portable to a different one, unless the run-time support systems on those platforms deliver mechanisms that abstract and encapsulate the sensor platform in an adequate manner. In this article we propose a software/hardware interface that is able to abstract...
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