Figure 2From: Low complexity PAPR reduction methods for carrier-aggregated MIMO OFDMA and SC-FDMA systemsOne DL OFDMA time slot where R refer to reference symbol is illustrated with S = 6 groups and each contains four resource blocks (48 subcarriers of 7 OFDMA symbols). Intervals 1 and 2 contain first 3 and later 4 OFDMA symbols respectively.Back to article page