Research Article
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 |
|
|