Next Generation Free-Space Optical Communication Systems

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Free-space optical communication, also known as wireless optical communication, is an important technology in future heterogeneous wireless networks. The current radio frequency based wireless networks are carrying increasing data traffic, and free-space optical communication emerges as a viable solution to the spectrum shortage and congestion problems. Free-space optical communication is a cost-effective, secure, interference-free, and license-free technology capable of delivering high speed data at gigabits per second without use of fiber optic cable. While some current generation commercial free-space optical communication systems have been deployed, they are incapable of overcoming the impairments caused by turbulence-induced fading in a power efficient manner. The communication theory of wireless optical communication is far from mature. The challenge remains to develop low-cost and low-power free-space optical communication systems capable of reliable high-speed data communication. Under our proposed research program, we will identify core technology for the next generation free-space optical communication systems. We will perform mathematical analysis and modeling of these systems in the presence of realistic channel and system impairments. We will invent new algorithms that will facilitate the implementation of our new free-space optical communication systems. We anticipate to make contributions to the advancement of modern wireless optical communication theory. Our development of novel synchronization algorithms for free-space optical subcarrier modulation will solve the outstanding challenge and become a major technology breakthrough for wide adoption of next generation free-space optical communication systems. Our proposed research program will likely generate new inventions leading to technology that can be patented. Our new free-space optical communication technology will keep Canada stay competitive in wireless communication sector.