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Gordon Dickers - IEEE Xplore Author Profile

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Most underwater wireless networks use acoustic waves as the transmission medium nowadays, but the chances of getting much more out of acoustic modems are quite remote. Optical links are impractical for many underwater applications. Given modern operational requirements and digital communications technology, the time is now ripe for re-evaluating the role of electromagnetic signals in underwater en...Show More
Underwater sensor networks have traditionally used acoustic or optical technologies to enable communication between the network nodes. Electromagnetic communications, although ubiquitous in most atmospheric communications systems, it has been largely dismissed for use in underwater environments because of the huge attenuation of the signal in water. Very low frequency (VLF) electromagnetic signals...Show More
A small scale wireless sensor network was designed using electromagnetic technology in order to provide an underwater coastal monitoring service. The sensor nodes were deployed manually, which formed a multi-hop static topology for the network. Data delivery was scheduled via daily cycles of sleeping and waking-up. Due to the unique features of the network, ad-hoc on-demand distance vector was cho...Show More
Most underwater sensor networks choose acoustics as the medium for wireless transmission. However, electromagnetic waves also offer great merits for transmission in special underwater environment. A small scale wireless sensor network is deployed using electromagnetic waves with a multi-hop static topology under shallow water conditions where there is a high level of sediment and aeration in the w...Show More