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2008

Establishing wireless time-triggered communication using a firefly clock synchronization approach

9 years 2 months ago
Establishing wireless time-triggered communication using a firefly clock synchronization approach
In South-East Asia, huge swarms of fireflies synchronously emit light flashes to attract mating partners. The underlying principle can be used to implement a robust and scalable distributed synchronization approach in wireless sensor networks. This paper describes the adaption of this principle for wireless sensor networks using battery-powered low-cost nodes based on an off the shelf IEEE 802.15.4 MAC layer in order to establish a global notion of time. This global notion of time is the basis for a wireless time-triggered network protocol, but also provides a service that can be used by real-time applications. The time-triggered behavior enables the implementation of an energy-efficient protocol, where sender and receiver units can be turned off during silent phases. The approach is evaluated by simulation and a real world case study using AVR R Z-LinkTM802.15.4/ZigBee nodes. Results exploring various network topologies, parameter choices, and realistic clock source deviations show t...
Robert Leidenfrost, Wilfried Elmenreich
Added 30 Oct 2010
Updated 30 Oct 2010
Type Conference
Year 2008
Where WISES
Authors Robert Leidenfrost, Wilfried Elmenreich
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