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Abstract: Intelligent reflecting surface (IRS) is an enabling technology to engineer the radio signal propagation in wireless networks. By smartly tuning the signal reflection via a large number of ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Ellen Lee Ellen Lee is a writer focused on baby and kid gear. She has left ...

Run, school and kids in hallway, lunch break and happiness with sunshine, active and freedom. Group, education and friends with shoes, learning and students in corridor, lobby and cheerful with joy ...

Browse 1,200+ tween-feet stock videos and clips available to use in your projects, or start a new search to explore more stock footage and b-roll video clips. Slow motion low angle camera ...