Ngày tải lên :
21/06/2014, 23:20
... 25 30 35
Average spectral efficiency (bits/s/Hz)
0
2
4
6
OFDMA
OFDMA, 1.25 MHz
OFDMA, 2.5 MHz
OFDMA, 5 MHz
OFDMA, 10 MHz
OFDMA, 15 MHz
OFDMA, 20 MHz
SC-FDMA
8
10
12
SC-FDMA, 1.25 MHz
SC-FDMA, ... dB
23
Number of users in the system
456
Average system spectral efficiency (bits/s/Hz)
WF, −20 dB
WF, −10 dB
WF, 0 dB
WF, 10 dB
WF, 20 dB
WF, 30 dB
OFDMA, −20 dB
OFDMA, −10 dB
OFDMA, 0 dB
OFDMA, 10 dB
OFDMA, ... (bits/s/Hz)
0
2
4
6
OFDMA, 1 Rx
OFDMA, 2 Rx (MRC)
OFDMA, 3 Rx (MRC)
8
10
14
12
SC-FDMA, 1 Rx
SC-FDMA, 2 Rx (MRC)
SC-FDMA, 3 Rx (MRC)
(b)
Figure 6: Comparison of the achievable information rate between
OFDMA...