SC-FDMA has drawn great attention as an attractive alternative to OFDMA, especially in the uplink communications where lower peak-to-average power ratio (PAPR) greatly benefits the mobile terminal in terms of transmit power efficiency and reduced cost of the power amplifier .
Read moreWhat is the advantage of FDMA over TDMA and FDMA?
Benefits or advantages of OFDMA Hence OFDMA makes efficient use of frequency allocations in comparison to FDMA and OFDM. ➨It provides multi-user diversity. This is due to the fact that OFDMA allows different users to transmit over different parts of the frequency spectrum known as traffic channel.
Read moreWhat is the difference between OFDM and SC-FDMA?
The most obvious difference between the two schemes is that OFDMA transmits the four QPSK data symbols in parallel, one per subcarrier, while SC-FDMA transmits the four QPSK data symbols in series at four times the rate , with each data symbol occupying a wider M x 15 kHz bandwidth.
Read moreWhat is DFT spread OFDM?
The DFT-spread OFDM is a form of single-carrier technique that possesses almost all advantages of the multicarrier OFDM technique (such as high spectral efficiency, flexible bandwidth allocation, low sampling rate, and low-complexity equalization).
Read moreWhat is the advantage of single carrier FDMA comparing to OFDMA?
Owing to its inherent single carrier structure, a prominent advantage of SC-FDMA over OFDM and OFDMA is that its transmit signal has a lower peak-to-average power ratio (PAPR) , resulting in relaxed design parameters in the transmit path of a subscriber unit.
Read more