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A handheld wireless device in development by two University of Arizona engineering professors could answer the question of how we create more wireless connections when so few remain in the spectrum.

A model of an experimental transmitter and receiver with reconfigurable antennas similar to those in development by Krunz and Xin.

Envision a world without lost signals or time-consuming searches for Wi-Fi connections. UA electrical and computer engineering professors Marwan Krunz (right, top) and Hao Xin (right, bottom) are working to shift how we structure wireless systems and eliminate wireless scarcity.

The surge in Wi-Fi enabled devices has been a boon for society but a strain on the wireless spectrum that provides the frequencies they use. Many of the frequencies are fixed, having been allocated exclusively for radio, television, military, mobile and other operators. What remains is limited.

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Tech Parks Arizona celebrated the fifth year of its high school competition, Racing the Sun, with a special award presentation for longtime mentors like Kelly Potter, a UA professor in electrical and computer engineering and optical sciences.

Kelly Potter received the Five-Year Mentor Award for her involvement with Tech Parks' Racing the Sun

"Kelly has been with the program since the beginning, and we wanted to give her the Five-Year Mentor Award in recognition of the valuable contributions she's made," said Brenda Hough, program coordinator for Racing the Sun and community outreach coordinator for Tech Parks Arizona, a unit of Tech Launch Arizona, the University's technology commercialization arm.

Potter... Read Complete Article

The UA College of Engineering honored remarkable seniors, graduate students and teaching assistants for the spring 2016 semester at a luncheon held shortly before the end of the semester. Among the recipients were the following electrical and computer engineering students:

Outstanding students Nicolas Fajardo, Min Liang and Nengyun Zhang

Outstanding Senior
• Nicolas Fajardo, nominated by Associate Department Head Hal Tharp
Nicolas was an undergraduate lab assistant for ECE 175, and an active participant in a number of organizations including IEEE-Eta Kappa Nu, Aerial Robotics Club and the Badminton Sports Club, for which he served as president. Following graduation, he will begin his career at IBM as a characterization... Read Complete Article

Research by a University of Arizona PhD candidate in electrical and computer engineering could make always-available wireless connections a reality using a new combination of artificial intelligence and algorithms.

Hamed Asadi thinks machines can learn a lot from humans.

Hamed Asadi presents his latest paper on cognitive engine learning

The UA graduate research assistant's work in cognitive radio engines, or CEs, often draws parallels between an infant's growth into adulthood and an engine’s artificial intelligence: going so far as to label the four progressive learning stages of a CE "infant, childhood, teenager and adult."

"In the infant stage, the engine has a lot to learn and is at its most unstable," Asadi said. "By the time it reaches the adult stage, the engine has learned most of what it needs to maintain a steady link and perform optimally."

Asadi's training algorithm even incorporates what he calls the "forgetfulness factor," allowing the engine to delete or forget older, less... Read Complete Article

University of Arizona College of Engineering