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Author = Jafarzadeh, Hamed;
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Displaying Results 1 - 2 of 2 on page 1 of 1
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IMPAQT Miniaturized Underwater Acoustic Telemetry Platform: Transmitter Node System Design
(2020)
Jafarzadeh, Hamed; Belcastro, Marco; O'Flynn, Brendan
IMPAQT Miniaturized Underwater Acoustic Telemetry Platform: Transmitter Node System Design
(2020)
Jafarzadeh, Hamed; Belcastro, Marco; O'Flynn, Brendan
Abstract:
The marine environment and its natural resources are an essential part of the geographical ecosystem and a great food source for humans. In recent years, terrestrial wireless sensor networks and Internet of Things (IoT) technologies have developed rapidly; however, due to the limitation of signal propagation in water, there is less development and advancement in the underwater sensors network domain. IMPAQT is a European research project aiming at the development of the technologies and methods to promote and support inland, coastal zone and offshore Integrated Multi-Trophic Aquaculture (IMTA) sites. As part of the IMPAQT project, a novel underwater acoustic telemetry platform has been proposed and is under development, to provide a method to collect and transmit sensors data underwater. The proposed platform architecture consists of several ultrasonic transmitter sensor nodes and a gateway buoy as a data aggregator interface. Transmitter nodes will collect and log underwater sensor...
http://hdl.handle.net/10468/10896
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Theoretical models for underwater RFID and the impact of water salinity on the design of wireless systems
(2020)
Peres, Caroline; Pigeon, Melusine; Rather, Nadeem; Gawade, Dinesh; Buckley, John; Jafar...
Theoretical models for underwater RFID and the impact of water salinity on the design of wireless systems
(2020)
Peres, Caroline; Pigeon, Melusine; Rather, Nadeem; Gawade, Dinesh; Buckley, John; Jafarzadeh, Hamed; O'Flynn, Brendan
Abstract:
Underwater wireless communications present challenges due to the characteristics of water as a propagation channel medium. Regardless, wireless communications are needed for a range of systems that operate underwater. Commonly used technologies for these use cases (radio-frequency, acoustic and optical communications) are lacking, as they generally suffer from strong attenuation, multipath effects and propagation delays. In this context, we explore the theoretical models for Path Loss of Radio Frequency Identification (RFID) systems underwater in regards to the salinity of the water. We also discuss RFID systems feasibility in such applications as aquaculture and fish stock management. This paper aims to discuss the theoretical transmission models for RFID systems underwater, separating them into near-field systems – which use Magnetic Induction (MI) to communicate – and far-field systems – that transfer data via Radio Frequency (RF). We determine the path loss for each case, the ef...
http://hdl.handle.net/10468/11111
Displaying Results 1 - 2 of 2 on page 1 of 1
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