|
| Symbol | Meaning |
|
| Number of videos in the system |
| Access bandwidth of the central video server (bits/s) |
| Proxy size (in bits) |
| Bandwidth for broadcasting (bits/s) |
| System arrival rate (reqs/s) |
| System service rate |
| Popularity of video m |
| Number of quality levels of video m |
| Probability of customers requesting th quality of videos |
| Arrival rate for the dedicated streams (reqs/s) |
| Average rate of the dedicated streams (bits/s), replication and no broadcast |
| Streaming rate of replicated video m having th quality level (bits/s) |
| Size of replicated video m encoded into th quality (bits) |
| Streaming rate of layered video m having th quality level (bits/s) |
| Streaming rate of layer j of video m (bits/s) |
| Size of layer j of video m (bits) |
| jth quality of video m |
| b | Proxy cache map matrix, |
| e | Coding approach instance, |
| w | Broadcasting map matrix, |
| o | Cache-Broadcast map matrix, |
| Crossover rate of GA |
| Mutation rate of GA |
| Population size of Gas |
| th quality level |
|