Table 2 Simulation parameters
From: Towards ubiquitous video services through scalable video coding and cross-layer optimization
MAC parameters | |
|---|---|
Retransmission limit | 7 |
EDCA ACs | Four ACs with TX queues of size 50 frames each |
Video TX queues in AC_VI | Three with differing priorities |
PHY parameters | |
Modulation | BPSK (FEC:1/3) |
Bandwidth | 20 MHz |
Coherence time | 0.1 s |
Log-normal shadowing time | 3 s |
Shadowing standard deviation (σ) | 4 dB |
E s /N0 (1m distance from BS) | 60 dB |
Video parameters | |
Video encoding | SVC video, BL + 2 quality enhancements |
GOP length and structure | 8 and IPPP... |
Resolution | CIF (352 × 288) |
Frame rate | 30 Hz |
Slices | Three in each layers' frame |
BL bitrate (Foreman; Hall) | 530; 300 kb/s |
1st EL bitrate (Foreman; Hall) | 1060; 1080 kb/s |
2nd EL bitrate (Foreman; Hall) | 2330; 2500 kb/s |