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Table 1 Description of parameters
| Parameter | Description |
|---|---|
| n | Number of nodes or processors |
| m | Number of waveform modules or tasks |
| t s | Call setup delay |
| Call setup delay constraint | |
| p b | Blocking probability |
| Blocking probability constraint | |
| t RA | Resource allocator’s (RA’s) execution time model |
| F | Scaling factor of RA model |
| α | Nodes’ exponent (nα) of RA model |
| β | Modules’ exponent (mβ) of RA model |
| θ | Cost function’s weight |
| ρ | Traffic load in Erlangs |
| ρ max | Maximum traffic load a single RA can manage |
| λ | Average session initiation requests per second |
| 1/μ | Average session duration in seconds |
| Φ(n) | Number of users that can be served with n |
| processors for a given waveform model |
