Table 3 System parameters.
OFDMA air interface and system level parameters | |
|---|---|
Carrier frequency | 3.5 GHz |
Bandwidth | 20 MHz |
Samplig frequency | 22.857 Msps |
Subcarrier permutation | Band AMC |
CP | 0.125% |
FFT length | 2048 |
# of used subcarriers | 1728 |
# of subcarriers per MRU | 18 |
# of OFDM symbols per MRU | 3 |
# of data symbols per MRU | 48 (efficiency = 8/9) |
Modulation | M-QAM, |
Channel coding | Punctured convolutional |
Bit error rate (BER) |
|
Channel model | Pedestrian B |
MS velocity | 10 Km/h |
Channel estimation and feedback | Ideal |
Shadowing standard deviation | 5 dB |
BS Tx power | 49 dBm |
BS antenna gain and pattern | 14 dB (sectorial antenna), 70° |
MS antenna gain and pattern | 0 dB, Omnidirectional |
Other link budget parameters | BS height = 30 m, |
MS height =1.5 m, | |
MS noise figure = 7 dB, | |
Connectors loss = 2 dB | |
Path loss, urban environment |
|
| |
Thermal noise | −174 dBm/Hz |
# of sectors simulated | 1 |
Frame duration, | 5 ms |
DL/UL rate |
|
# of OFDM symbols in the DL subframe | 30 |
,
distance BS to MS in Km.
