User Manual

BROWAN COMMUNICATIONS Page 91
provides differentiated channel access to frames with
different priorities. Typically, voice and video traffic
types are delay-sensitive, but are tolerant of some
frame losses. On the other hand, data traffic type is
delay-tolerable, but requires loss-free transmission. So
you may adjust theses parameters with regard to the
characteristics of these types of data to better manage
your network flow.
AC (Access Category):
Using 4 different ACs: From high to low: VO:
Voice, VI: Video, BE: Best Effort, BK: Background.
AIFS (Arbitrary Inter-frame Space):
An Inter-frame Space for different Access
Category
TXOP (Transmission Opportunity):
WMM (Wireless Multimedia) Transmission
Opportunity: defined by IEEE 802.11e, the TXOP is
the interval of time when a particular STA (station)
has the right to initiate transmissions.
ACM (Admission Mandatory):
Advertised in the EDCA parameter set element to