Towards Wireless Communication with Bounded Delay

Examensarbete för masterexamen

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Type: Examensarbete för masterexamen
Master Thesis
Title: Towards Wireless Communication with Bounded Delay
Authors: Phan, Henning
Abstract: Many of the existing implementations of Wireless Sensor Networks (WSN) cannot be considered for safety critical systems that require a constant upper bound time delay delivering messages. To deal with that, Petig, Schiller, Tsigas proposed a selfstabilising Time Division Multiple Access (TDMA) Protocol without leaders and external references [1]. The system settings that Petig et. al’s assume consider the case in which ambient noise does not exist and in the absence of concurrent transmission packets are always received. This work considers the implementation of Petig et. al in real systems. Namely, we consider message reception behaviour that is subject to ambient noise and other complex radio propagation patterns. We show that the strategy proposed by Petig et. al for mitigating the effect of concurrent transmissions is applicable for working WSN systems. We also propose to build atop Petig et. al’s robust algorithm and use a masking technique we call link reliability to provide mitigation against repeated packet drop due. Simulations and real experiments show distinct benefits of utilising link reliability.
Keywords: Data- och informationsvetenskap;Computer and Information Science
Issue Date: 2016
Publisher: Chalmers tekniska högskola / Institutionen för data- och informationsteknik (Chalmers)
Chalmers University of Technology / Department of Computer Science and Engineering (Chalmers)
Collection:Examensarbeten för masterexamen // Master Theses

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