Rate-Distortion Optimized Frame Dropping for Multiuser Streaming and Conversational Videos

Table 4

Comparison of utility-based dropping and random dropping.

Outlink rate (kbps)	120	180	240	300	360	420	480	540
Normalized rate	0.282	0.423	0.564	0.705	0.846	0.987	1.128	1.270
Utility-based frame dropping
CV1(dB)	15.01	19.60	22.53	27.23	29.96	32.20	34.01	36.07
CV2(dB)	15.60	21.07	23.30	28.46	31.11	33.03	35.12	36.45
CV3(dB)	20.50	21.30	23.34	27.23	30.39	32.76	34.25	36.06
CV4(dB)	18.52	21.37	25.12	27.83	31.40	34.02	35.82	36.93
Mean(dB)	17.41	20.83	23.57	27.69	30.71	33.00	34.80	36.38
Random frame dropping
CV1(dB)	13.68	19.96	21.09	25.25	26.57	29.75	31.71	35.17
CV2(dB)	16.40	16.64	21.15	23.52	28.93	28.60	34.43	33.34
CV3(dB)	16.44	26.26	26.25	29.17	31.69	34.99	34.11	37.02
CV4(dB)	23.67	24.49	28.75	29.97	32.61	33.84	36.38	37.21
Mean(dB)	17.55	21.84	24.31	26.98	29.95	31.79	34.16	35.69