Table 4 Comparison of available resources
From: Layered video multicast using fractional frequency reuse over wireless relay networks
Conventional relay | Hard FFR | Traditional FFR | Soft FFR | Two-step power soft FFR | |
|---|---|---|---|---|---|
S1 | 1/3 × B × t1 = 1/6 × B × T | 14/30 × B × t1 ≅ 5.09/30 × B × T | B × t1 = 1/4 × B × T | B × t1 = 1/4 × B × T | B × t1 = 1/4 × B × T |
S2 | 1/3 × B × t2 = 1/6 × B × T | 8/30 × B × t2 ≅ 5.09/30 × B × T | 1/3 × B × t2 = 1/4 × B × T | 1/3 × B × t2 = 1/4 × B × T | 1/3 × B × t2 = 1/4 × B × T |
S3 | 0 | 6/30 × B × t2 ≅ 3.82/30 × B × T | 0 | 2/3 × B × t2 = 1/2 × B × T | 2/3 × B × t2 = 2/4 × B × T |
Total | 1/3 × B × T | 14/30 × B × T | 1/2 × B × T | B × T | B × T |