High-capacity, long-range, over ocean microwave link using the evaporation duct

Woods, Graham S., Ruxton, Adam , Huddlestone-Holmes, Cameron, and Gigan, Gilles (2009) High-capacity, long-range, over ocean microwave link using the evaporation duct. IEEE Journal of Oceanic Engineering, 34 (3). pp. 323-330.

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This communication reports the first ever use of the over ocean evaporation duct to implement a high-capacity radio link from the Australian mainland to the Great Barrier Reef (GBR), North Queensland, Australia. Conventional long-distance radio communication techniques such as high-frequency (HF) radio, satellite, or cell phone are either too slow or too expensive to operate continuously in this situation. A microwave radio link overcomes these problems but would generally not be viable due to the limited range possible with a standard line-of-sight microwave link. This communication shows that by properly choosing the antenna height and operating frequency though, it is possible to trap signals in the ocean evaporation duct and substantially extend the propagation range. A 78-km link that operates at a frequency of 10.6 GHz and provides a data rate of 10 Mb/s as been established to verify the technique. The communication also provides preliminary results of the measured performance of this link and a comparison with existing radio propagation models.

Item ID: 8074
Item Type: Article (Research - C1)
ISSN: 1558-1691
Keywords: evaporation duct, high capacity link, microwave radio, over ocean propagation, sensor network
Date Deposited: 10 Feb 2010 05:45
FoR Codes: 09 ENGINEERING > 0911 Maritime Engineering > 091103 Ocean Engineering @ 80%
09 ENGINEERING > 0906 Electrical and Electronic Engineering > 090699 Electrical and Electronic Engineering not elsewhere classified @ 15%
04 EARTH SCIENCES > 0401 Atmospheric Sciences > 040108 Tropospheric and Stratospheric Physics @ 5%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970109 Expanding Knowledge in Engineering @ 40%
96 ENVIRONMENT > 9602 Atmosphere and Weather > 960202 Atmospheric Processes and Dynamics @ 20%
89 INFORMATION AND COMMUNICATION SERVICES > 8901 Communication Networks and Services > 890199 Communication Networks and Services not elsewhere classified @ 40%
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