Which of the following is a key characteristic of orthogonal frequency-division multiplexing?
A)Amplitude modulation
B)Noise performance
C)Digital modulation
D)Spectral efficiency

Question

Quizplus · Accepted Answer

Orthogonal frequency-division multiplexing (OFDM) is a digital modulation technique used for encoding large amounts of digital data onto a carrier signal. Its key characteristic is its high spectral efficiency, allowing multiple signals to be transmitted simultaneously over a single channel without interference. OFDM also has good noise performance due to its ability to handle multipath interference and channel fading. Amplitude modulation (A), digital modulation (C), and noise performance (B) are not key characteristics of OFDM.

Which of the Following Is a Key Characteristic of Orthogonal