@article{cox_muth_2014, title={Simulating channel losses in an underwater optical communication system}, volume={31}, ISSN={["1520-8532"]}, DOI={10.1364/josaa.31.000920}, abstractNote={A Monte Carlo numerical simulation for computing the received power for an underwater optical communication system is discussed and validated. Power loss between receiver and transmitter is simulated for a variety of receiver aperture sizes and fields of view. Additionally, pointing-and-tracking losses are simulated.}, number={5}, journal={JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION}, author={Cox, William and Muth, John}, year={2014}, month={May}, pages={920–934} } @article{cox_gray_muth_2011, title={Underwater optical communication using a modulating retroreflector}, volume={52}, number={5}, journal={Sea Technology}, author={Cox, W. and Gray, K. and Muth, J.}, year={2011}, pages={47–49} } @inproceedings{cox_simpson_muth_2011, title={Underwater optical communication using software defined radio over LED and laser based links}, DOI={10.1109/milcom.2011.6127621}, abstractNote={Underwater optical communication is an attractive means to achieve high datarate, low latency, and covert communication between underwater vehicles or sensor nodes. We demonstrate the viability of using a software defined radio system to communicate at Mbps rates using LEDs and lasers underwater and examine the performance of BPSK and GMSK simplex and duplex links.}, booktitle={2011 - Milcom 2011 Military Communications Conference}, author={Cox, W. C. and Simpson, J. A. and Muth, J. F.}, year={2011}, pages={2057–2062} } @inproceedings{simpson_cox_krier_cochenour_hughes_muth_2010, title={5 mbps optical wireless communication with error correction coding for underwater sensor nodes}, DOI={10.1109/oceans.2010.5664429}, abstractNote={One issue with underwater sensors is how to efficiently transfer large amounts of data collected by the node to an interrogating platform such as an underwater vehicle. It is often impractical to make a physical connection between the node and the vehicle which suggests an acoustic or optical wireless solution. For large amounts of data, the high bandwidth of underwater optical wireless is an advantage. A small, low-cost platform to demonstrate the potential of an optical wireless communications interface for underwater sensor nodes is demonstrated. To enhance the reliability and robustness of the optical wireless communication digital signal processing and error correction techniques are used. The system was tested in 3 and 7.7 meter tanks at 5 Mbps with the turbidity of the water controlled by the addition of Maalox.}, booktitle={Oceans 2010}, author={Simpson, J. A. and Cox, W. C. and Krier, J. R. and Cochenour, B. and Hughes, B. L. and Muth, J. F.}, year={2010} } @inproceedings{cox_gray_simpson_cochenour_hughes_muth_2010, title={A MEMS Blue/Green retroreflecting modulator for underwater optical communications}, DOI={10.1109/oceans.2010.5664432}, abstractNote={Short range, high bandwidth underwater optical communications links are potentially useful for retrieving stored information from underwater systems. However many underwater systems have limited power capacity or limited weight budget. The use of a modulating retroreflector eliminates the need for a transmitting laser on the data bearing platform and reduces the pointing requirements by retroreflecting the modulated light back to the interrogating source. Blue/green operation of a MEMS Fabry-Perot modulator was demonstrated at data rates of 500 kbps and 1 Mbps in a 7.7 meter tank with water conditions varied by the addition of Maalox as a scattering agent.}, booktitle={Oceans 2010}, author={Cox, W. C. and Gray, K. F. and Simpson, J. A. and Cochenour, B. and Hughes, B. L. and Muth, J. F.}, year={2010} }