ARQ-Aware Scheduling and Link Adaptation for Video Transmission over Mobile Broadband Networks

Table 1

OFDMA PHY profile parameters in 802.16e.

Parameters	Values
Channel bandwidth (MHz)	1.25	5	10	20
FFT size	128	512	1024	2048
Sampling frequency (MHz)	1.4	5.6	11.2	22.4
Subcarrier frequency spacing (kHz)	10.94
Useful symbol time 𝑇𝑏  (𝜇s)	91.4
Guard time 𝑇𝑔  (𝜇s)	11.4
OFDMA symbol duration (𝑇𝑠=𝑇𝑏+𝑇𝑔)  (𝜇s)	102.9
Number of OFDMA symbols (5 ms frame)	47