question about duplex mode of wlan
the following clause is copy from BCMSN student guide:
TIP IEEE 802.11 WLANs are always half-duplex because transmitting and receiving stations use the same frequency. Only one station can transmit at any time; otherwise, collisions occur. To achieve full-duplex mode, all transmitting would have to occur on one frequency and all receiving would occur over a different frequency—much like full-duplex Ethernet links work. Although this is certainly possible and practical, the 802.11 standards don’t permit full-duplex operation.
does these mean that all currently engaged wlan is running in half-duplex mode ? for all i know，all currently wlan is running under IEEE802.11 standard, like 802.11b、802.11g...etc.
TIP IEEE 802.11 WLANs are always half-duplex because transmitting and receiving stations use the same frequency. Only one station can transmit at any time; otherwise, collisions occur. To achieve full-duplex mode, all transmitting would have to occur on one frequency and all receiving would occur over a different frequency—much like full-duplex Ethernet links work. Although this is certainly possible and practical, the 802.11 standards don’t permit full-duplex operation.
does these mean that all currently engaged wlan is running in half-duplex mode ? for all i know，all currently wlan is running under IEEE802.11 standard, like 802.11b、802.11g...etc.
Comments
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Chris:/*
Member Posts: 658 ■■■■■■■■□□
Yes all WLAN is running in Half-Duplex mode.Degrees:
M.S. Information Security and Assurance
B.S. Computer Science - Summa Cum Laude
A.A.S. Electronic Systems Technology -
chmorin
Member Posts: 1,446 ■■■■■□□□□□
Yes all WLAN is running in Half-Duplex mode.
...and with headers the size of the moon. Stuff like this is why when people request a wireless phone I cringe. It's basically a hub mounted on the ceiling.Currently PursuingWGU (BS in IT Network Administration) - 52%| CCIE:Voice Written - 0% (0/200 Hours)mikej412 wrote:Cisco Networking isn't just a job, it's a Lifestyle. -
creamy_stew
Member Posts: 406 ■■■□□□□□□□
...and with headers the size of the moon. Stuff like this is why when people request a wireless phone I cringe. It's basically a hub mounted on the ceiling.
LOL,
"That's no moon!"
It's a 802.11 header!