From: Content aware optimization for video delivery over WCDMA
Symbol | Description |
---|---|
N | Number of users |
n | Number of frames in a GOP |
f ij | Video frame j of user i |
f ij ″ | Reconstructed frame if f ij is dropped |
λ( f ij ) | Length (in bytes) of frame f ij |
t DTS( f ij ) | DTS of frame f ij |
r( f ij ) | Rate required to transmit frame f ij |
δ i | Difference in DTSs between consecutive frames of user i |
Λ i | Set of dropped frames by user i |
d(f ij ″, f ij ) | Frame-level PSNR distortion metric |
D i ( Λ i ) | Distortion per GOP of user i due to frame drop |
R i ( Λ i ) | Required rate per GOP for user i |
p ij | Transmit power for frame f ij |
θ ij | Indicator variable for scheduling frame f ij |
| Maximum transmit power |
γ ij | Received SINR at base station for frame f ij |
Z thresh | Pre-determined RoT threshold |