3.1 Difference between Uplink and Downlink:
As shown in figure
(3.1 and 3.2) the difference between uplink using SC-FDMA and downlink using
FDMA is very small (nearly identical),and it is offer the same degree multipath
protection.
Figure 3.1 -----SC-FDMA -----at uplink
Figure 3.2 -----OFDM-----at downlink
It is very clear
that the only difference between them the Discrete Fourier transform (DFT) at
transmitter and his inverse (IDFT) at receiver at SC-FDMA.
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