Research Article
A Novel Adaptation Method for HTTP Streaming of VBR Videos over Mobile Networks
Table 3
Statistics of the reference methods and the proposed method with three different options for “Terminator 2.” Here, STD is the standard deviation.
| Statistics | ITB | TBB | AVG-10 | AVG-30 | AVG-50 |
| Average bitrate (kbps) | 1544.3 | 1926.2 | 1962.9 | 1779.4 | 1691.3 |
| Average version | 4.51 | 4.34 | 4.61 | 4.55 | 4.46 | Maximum version | 6 | 6 | 6 | 6 | 6 | Minimum version | 1 | 1 | 2 | 2 | 2 |
| Number of switches | 128 | 17 | 18 | 12 | 12 | Maximum switch degree | 3 | 3 | 1 | 1 | 1 | STD of switch degrees | 0.63 | 0.34 | 0.24 | 0.20 | 0.20 |
| Minimum buffer level (s) | 42.5 | 1.5 | 18.3 | 21.8 | 22.7 | STD of buffer levels (s) | 1.64 | 16.44 | 10.43 | 9.22 | 8.98 |
|
|