Title :
Phase Coherent Digital Communications for Wireless Optical Links in Turbid Underwater Environments
Author :
Cochenour, Brandon ; Mullen, Linda ; Laux, Alan
Author_Institution :
Naval Air Syst. Command, Patuxent River
fDate :
Sept. 29 2007-Oct. 4 2007
Abstract :
Previous studies by the authors have included a theoretical and experimental investigation of the spatial distribution of an optical signal used for communications in underwater scattering environments. Presented here is an experimental study of how scattering affects the temporally encoded information bearing component of the optical signal. Short range underwater optical links employing BPSK, QPSK, 8- PSK, 16-QAM, and 32-QAM modulation are implemented in a laboratory setting, yielding data rates up to 5 Mb/s. The effect of link quality is examined versus water turbidity.
Keywords :
digital communication; optical communication; optical links; phase shift keying; quadrature amplitude modulation; underwater optics; wireless channels; 16-QAM modulation; 32-QAM modulation; 8- PSK modulation; BPSK modulation; QPSK modulation; link quality effects; optical signal spatial distribution; phase coherent digital communications; temporally encoded information; turbid underwater environment; underwater optical communication; underwater optical links; underwater scattering environment; water turbidity effects; wireless optical links; Binary phase shift keying; Digital communication; Optical devices; Optical fiber communication; Optical modulation; Optical scattering; Phase shift keying; Quadrature phase shift keying; Underwater communication; Wireless communication;
Conference_Titel :
OCEANS 2007
Conference_Location :
Vancouver, BC
Print_ISBN :
978-0933957-35-0
Electronic_ISBN :
978-0933957-35-0
DOI :
10.1109/OCEANS.2007.4449173
