A Novel Adaptation Method for HTTP Streaming of VBR Videos over Mobile Networks

Table 2

Statistics of the reference methods and the proposed method with three different options for “Sony Demo.” Here, STD is the standard deviation.

Statistics	ITB	TBB	AVG-10	AVG-30	AVG-50
Average bitrate (kbps)	1555.2	1951.5	1777.7	1632.0	1637.1
Average version	4.29	4.19	4.30	4.18	4.16
Maximum version	6	6	6	6	6
Minimum version	1	1	2	2	2
Number of switches	94	18	17	15	15
Maximum switch degree	4	4	1	1	1
STD of switch degrees	0.56	0.37	0.23	0.22	0.22
Minimum buffer level (s)	42	5.2	15.1	14.3	14.4
STD of buffer levels (s)	1.59	15.31	11.49	11.41	10.43