Final answer:
Microwave communication refers to a type of wireless connection that requires a clear line of sight due to the short wavelengths of microwaves and is used in various technologies including satellites and WiFi.
Step-by-step explanation:
Microwave communication is a wireless connection which is sometimes referred to as line-of-sight communication. This type of communication is utilized by various wireless technologies, such as communications satellites and long-distance transmissions, because of its ability to carry more information per unit time on high frequencies. A clear line of sight is essential due to the short wavelengths of microwaves which can be obstructed by physical objects, hence the term 'line-of-sight' communication.
Moreover, wireless technologies including WiFi and Bluetooth utilize microwaves for exchanging data between devices like cell phones and computers, as well as linking headphones to audio devices. These communications generally operate in the 2.4 GHz to 5.0 GHz range. In contrast, optical fiber communication utilizing lasers offers advantages like low loss, high bandwidth, and reduced crosstalk for telephone and Internet communications, especially over long distances.