What is the function of a carrier signal in wireless communication?

The function of a carrier signal in wireless communication is fundamentally to carry information over long distances. A carrier signal is a waveform that can be modulated in order to transport data. This modulation involves varying aspects of the carrier wave—such as its amplitude, frequency, or phase—to encode the information being transmitted.

The use of carrier signals is crucial because they allow the transmission of information through the electromagnetic spectrum. By utilizing these signals, various forms of data—such as voice, video, or internet signals—can be effectively transported from one point to another, even over vast distances. This is particularly important in wireless communication, where the challenges of attenuation, noise, and interference are prevalent.

In contrast, the other options refer to various aspects of communication but do not capture the primary role of carrier signals. While enhancing frequency ranges, reducing interference, and amplifying signals are relevant to improving the quality and reliability of communication systems, they do not address the specific function of a carrier wave, which is to serve as the medium for transmitting diverse types of information effectively over long distances.