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GLOBECOM
2007
IEEE

A Geometric Approach to Slot Alignment in Wireless Sensor Networks

9 years 18 days ago
A Geometric Approach to Slot Alignment in Wireless Sensor Networks
— Traditionally, slotted communication protocols have employed guard times to delineate and align slots. These guard times may expand the slot duration significantly, especially when clocks are allowed to drift for longer time to reduce clock synchronization overhead. Recently, a new class of lightweight protocols for statistical estimation in wireless sensor networks have been proposed. This new class requires very short transmission durations (jam signals), thus the traditional approach of using guard times would impose significant overhead. We propose a new, more efficient algorithm to align slots. Based on geometrical properties of space, we prove that our approach bounds the slot duration by only a constant factor of what is needed. Furthermore, we show by simulation that this bound is loose and an even smaller slot duration is required, making our approach even more efficient.
Niky Riga, Ibrahim Matta, Azer Bestavros
Added 02 Jun 2010
Updated 02 Jun 2010
Type Conference
Year 2007
Where GLOBECOM
Authors Niky Riga, Ibrahim Matta, Azer Bestavros
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