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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...
Message routing is a keystone of Wireless Sensor Networks (WSN). In many routing algorithms, sensor nodes forward data in a multicast fashion and a specific routing metric defines which of the receiving nodes is the next forwarder. If this metric is static, optimal routes tend to be overused and nodes in that route die quickly. The Trustful Space-Time Protocol (TSTP) is a cross-layer protocol designed...
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...
The Trustful Space-Time Protocol (TSTP) is an application-oriented protocol designed to resource-efficiently deliver authenticated, encrypted, timed, georeferenced, SIcompliant data communication support to IoT devices interacting with an IoT gateway, effectively defining a new API and paradigm for programming WSNs and the IoT. In this work, we describe TSTP's MAC in detail and show how it is a fundamental...
In this paper, we introduce a cross-layer, application-oriented communication protocol for Wireless Sensor Networks (WSN). TSTP - Trustful Space-Time Protocol - integrates most services recurrently needed by WSN applications: Medium Access Control (MAC), spatial localization, geographic routing, time synchronization and security, and is tailored for geographical monitoring applications. By integrating...
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