| has gloss | eng: Single-carrier FDMA (SC-FDMA) is frequency-division multiple access scheme. It is a multi-user version of Single-carrier frequency-domain-equalization (SC-FDE) modulation scheme. SC-FDE can be viewed as a linearly precoded OFDM scheme, and SC-FDMA can as a linearly precoded OFDMA scheme, henceforth LP-OFDMA. Or, it can be viewed as a single carrier multiple access scheme. One prominent advantage over conventional OFDM and OFDMA is that the SC-FDE and LP-OFDMA/SC-FDMA signals have lower peak-to-average power ratio (PAPR) because of its inherent single carrier structure. It has been proven that perfect constant modulus transmission is achievable. |
