Table 1: OFDMA PHY profile parameters in 802.16e.

Parameters Values

Channel bandwidth (MHz) 1.25 510 20
FFT size 128 5121024 2048
Sampling frequency (MHz) 1.4 5.611.2 22.4
Subcarrier frequency spacing (kHz) 10.94
Useful symbol time 𝑇 𝑏    ( 𝜇 s ) 91.4
Guard time 𝑇 𝑔    ( 𝜇 s ) 11.4
OFDMA symbol duration ( 𝑇 𝑠 = 𝑇 𝑏 + 𝑇 𝑔 )    ( 𝜇 s ) 102.9
Number of OFDMA symbols (5 ms frame) 47