Like OFDM,_______ employs multiple closely spaced subcarriers,but the subcarriers are divided into groups of subcarriers.
A)CDMA
B)IFFT
C)QPSK
D)OFDMA

Question

Quizplus · Accepted Answer

OFDMA (Orthogonal Frequency Division Multiple Access) employs multiple closely spaced subcarriers, but the subcarriers are divided into groups of subcarriers. This allows for better resource allocation and management in wireless communication systems. CDMA (Code Division Multiple Access) uses a different method of dividing up the available frequency spectrum, IFFT (Inverse Fast Fourier Transform) and QPSK (Quadrature Phase Shift Keying) are modulation techniques that are used in combination with OFDM or OFDMA, but do not involve the division of subcarriers into groups.

Like OFDM,_______ Employs Multiple Closely Spaced Subcarriers,but the Subcarriers Are