Abstract
The next generation of satellite communication systems aims to achieve a throughput of Terabits/s. Because of the limited spectrum available, traditional radio frequency (RF) communication link cannot provide such high throughput. Free-space optical (FSO) transmission is a promising alternative that has recently gained increased attention in the satellite community. However, FSO communication is sensitive to the adverse effects of beam scintillation, beam wander-induced pointing error, free-space loss, and weather conditions. To counteract these limitations, we propose a space-air-ground (SAG) FSO network with a strategically deployed high altitude platform (HAP) for remedying the effect of atmospheric impairments on FSO transmission, particularly at high zenith angles. Then, we present an integrate Satcom system architecture that integrates the proposed SAG-FSO transmission and traditional space-ground hybrid FSO/RF links to further improve system performance and reliability. We demonstrate the significant potentials of the proposed SAG-FSO network architectures through selected numerical results.
Brief Biography
Hong-Chuan Yang received his Ph.D. degree in Electrical Engineering from the University of Minnesota, Minneapolis, USA, in 2003. Since then, Dr. Yang has been with the Department of Electrical and Computer Engineering at the University of Victoria, Victoria, B.C., Canada, where he is now a professor. From 1995 to 1998, Dr. Yang was a Research Associate at the Science and Technology Information Center (STIC) of Ministry of Posts & Telecomm. (MPT), Beijing, China. His current research focuses on the design and analysis of wireless transmission technologies for advanced Internet of Things. Dr. Yang has published over 200 referred journal and conference papers. He is the author of Introduction of Digital Wireless Communications by IET press and the co-author of Advanced Wireless Transmission Technologies by Cambridge University Press.
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