Information Technology Reference
In-Depth Information
Table 1
Data streams over WLAN and their priority classes
Stream
Service
Access Class (AC)
1
Voice (flows from AP to Node 1)
AC_VO
2
Foreground object stream of 3D video (flows from AP to
Node 2 over UDP)
AC_VI
3
Background object stream of 3D video (flows from AP to
Node 2 over UDP)
AC_BE
4
Depth map stream of 3D video (flows from AP to Node 2
over UDP)
AC_BK
5
2D video streaming (flows from AP to Node 3 over UDP)
AC_VI
6
FTP stream with 1500 byte MTUs (flows from Node 4 to
Node 5 over TCP)
AC_BE
7
FTP stream with 256 byte MTUs (flows from Node 5 to
Node 6 over TCP)
AC_BK
Different prioritization levels for each class are obtained through changing the
Contention Window (CW) parameters such as CW
min
, CW
max
and CW
offset
of each
station. A total simulation time of 30 seconds is considered. The resultant Av
PLRs for each of the video streams is presented in Table 2.
Table 2
Packet loss rates for each testing point
Obj/Case
A
B
C
D
E
Depth
0.10
0.15
0.20
0.30
0.40
Obj 1
0.01
0.01
0.05
0.05
0.05
Obj 2
0.10
0.15
0.20
0.30
0.40
