University of California, Riverside

Department of Electrical and Computer Engineering

Ultraviolet Research is Featured in the IEEE Spectrum

Ultraviolet Research is Featured in the IEEE Spectrum
Professr Xu

An article, titled “Ultraviolet Radios Beam to Life” in the May issue of IEEE Spectrum (web link, introduces a new ultraviolet LED-based wireless communication scheme developed jointly by Prof. Zhengyuan Xu’s Wireless Information Technology Lab at UCR and the U.S. Army Research Lab. Unlike traditional optical waves that can only transverse along a line-of-sight path to the destination, ultraviolet waves can utilize atmospheric scattering to convey information to a remote terminal through non-line-of-sight paths. Thus no restrictive pointing of two communicating transceivers is required. Together with other unique characteristics, this feature allows to build solar-blind covert communication links among different sensors or mobile units in a wireless network. However, fundamental issues in many aspects remain open, such as adaptive system configuration, random scattering characterization, optimal signal waveforms and receiver structures, and multiple access schemes to support effective multi-node communication. Xu’s group is pioneering research in these areas through novel experimental, analytical and computer simulation approaches.

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