Abstract: Optical wireless communication (OWC) refers to transmission in unguided propagation media through the use of optical carriers, i.e., visible, infrared (IR), and ultraviolet (UV) bands. In ...

Since our founding in 2000, we've produced tens of thousands of marketing resources. (So many that even our editors have a hard time keeping up!) That's why we've set up our resource page so you can ...

Have you thought about your learning goals for the new year? Is one of them to improve your English language skills? We spoke to two teachers who explain how to set different types of goals and more ...