Table 3 Comparison of available frequencies
From: Layered video multicast using fractional frequency reuse over wireless relay networks
| Â | Conventional relay | Hard FFR | Traditional FFR | Soft FFR | Two-step power soft FFR |
|---|---|---|---|---|---|
Available frequencies for BS in step 1 | F1 = 10/30 × B | F1 + F2 = 14/30 × B | F1 + F2 + F3 = 30/30 × B | F1 + F2 + F3 = 30/30 × B | F1 + F2 + F3 = 30/30 × B |
Available frequencies for RS in step 2 | F1 = 10/30 × B | F2 = 8/30 × B | F1 = 10/30 × B | F1 = 10/30 × B | F1 = 10/30 × B |
Available frequencies for BS in step 2 | 0 | F1 = 6/30 × B | 0 | F2 + F3 = 20/30 × B | F2 + F3 = 20/30 × B |