Transceiver design for reliable free space optical communications
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Date
2011
Authors
Cowley, W.G.
Lechner, G.
Biggs, C.
Grant, K.
Editors
Krongold, B.
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Conference paper
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AusCTW2011 : communications theory workshop, 2011 / Krongold, B. (ed./s), pp.94-99
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AusCTW2011: Communications Theory Workshop (AusCTW) (31 Jan 2011 - 3 Feb 2011 : Melbourne, Australia)
Abstract
Free space optical (FSO) communication offers the advantages of compact terminals and very high data rates without using scarce radio frequency spectrum. Unfortunately cloud and fog, together with scintillation caused by small temperature variations in the atmosphere, can result in significant attenuation and highly variable amplitude fluctuations that degrade link availability. This paper describes a 2 Mbit/s FSO modem and codec design, that includes a suitably large interleaver and strong channel coding scheme using a low density parity check (LDPC) code, plus synchronisation algorithms, to provide reliable communication over a 12 km optical channel.
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Copyright 2011 IEEE
Access Condition Notes: Accepted manuscript available open access