This book provides a comprehensive review and the latest progress of ultraviolet communications. Optical wireless communications employing electromagnetic waves in optical wavebands as information carriers can achieve higher communication bandwidth compared with radio frequency based wireless communication. However, the good directionality of optical waves degrades its non-line-of-sight transmission ability for avoiding obstacles.
The ultraviolet communication employs the ultraviolet light in solar blind waveband (200280 nm) as information carriers. The name solar blind" is derived from the fact that the solar radiation in 200280 nm is strongly absorbed by the ozone layer of the atmosphere such that little ultraviolet lights can reach the earth's surface. Therefore, ultraviolet communications enjoy low background radiation noise compared with other optical wireless communications. Besides, the strong absorption effect of ultraviolet lights in the atmosphere also guarantees a good local security due to the verified low-probability-of-detection. Therefore, the ultraviolet communication becomes a promising non-line-of-sight optical wireless communication technology and attracted increasing research attentions in recent decades.
This book mainly focuses on the key principles and technologies of ultraviolet communications, including the channel modeling, achievable information rate, full-duplex ultraviolet communication, relay-assisted ultraviolet communication, non-line-of-sight ultraviolet positioning, and some future prospects of ultraviolet communications.
Chapter 1 Introduction to Ultraviolet Communications.
Chapter 2 Channel Modeling of Ultraviolet Communications.
Chapter 3 Achievable Information Rates of Ultraviolet Communications.
Chapter 4 Full-Duplex Ultraviolet Communications.
Chapter 5 Relay-Assisted Ultraviolet Communications.
Chapter 6 None-Line-of-Sight Ultraviolet Positioning.
Chapter 7 Future Prospects of Ultraviolet Communications.
Renzhi Yuan (Member, IEEE) received the B.S. degree in mechanical engineering from Tongji University, Shanghai, China, in 2011, the M.S. degree in precision instrument from Tsinghua University, Beijing, China, in 2017, and the Ph.D. degree in electrical engineering from the University of British Columbia, Kelowna, BC, Canada, in 2021. He is currently a distinguished research fellow in the School of Information and Communication Engineering and the State Key Laboratory of Networking and Switching Technology of Beijing University of Posts and Telecommunications. His research interests include the space-air-ground integrated communications, wireless optical communications, and quantum communications.
Zhifeng Wang received the B.S. degree from Shanghai University, Shanghai, China, and the M.S. degree from Hainan University, Haikou, China, in 2015 and 2018, respectively. He is currently working toward the Ph.D. degree in State Key Laboratory of Networking and Switching Technology (SKL-NST), School of Information and Communication Engineering, Beijing University of Posts and Telecommunications (BUPT). His research interests include ultraviolet communications, full-duplex, and multiple access technologies.
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