Table 2 System parameters for numerical analysis
From: Call admission control for integrated multimedia service in heterogeneous mobile hotspots
Symbol | Definition | Value |
|---|---|---|
1/λ1 | Average idle time of video users (s) | 50 |
1/λ2 | Average idle time of data users (s) | 12 |
1/μ1 | Average video flow duration (s) | 82.5 |
Ï„ b | Video burst interval (s) | 0.033 |
| Average number of bursts in a video flow | 2,500 |
| Average number of packets in a data flow | 400 |
p | Parameter of NB distribution for batch size A | 0.6946 |
r | Parameter of NB distribution for batch size A | 0.1200 |
L v | Video packet size (byte) | 750 |
L d | Data packet size (byte) | 480 |
L a | WWAN link packet size (byte) | 250 |
m | Number of traffic states of aggregate flow | 4 |
n | Number of valid transmission modes over WWAN link | 5 |
P 0 | Target packet error probability due to WWAN channel fading | 0.001 |
T f | AMC adaptation period (s) | 0.001 |
f c | Carrier frequency of WWAN link (MHz) | 900 |
m | Fading severity parameter of WWAN link | 1.1 ∼2.2 |
v | Velocity of mobile hotspot (m/s) | 5.6 |
κ | Path loss exponent of WWAN link | 2.75 |
d 0 | Reference distance between vehicle and BS (m) | 400 |
| Average received SNR at reference distance (dB) | 20 |