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Table 1 Notations

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

p max

Maximum transmit power

γ ij

Received SINR at base station for frame f ij

Z thresh

Pre-determined RoT threshold