AmbiCom WL1100B-AR - Manual (Page 16)

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another station is already using the wireless medium. When these two stations send data at
the same time, they might collide when arriving simultaneously at the WL1100B-AR Wireless
LAN Access Router. The collision will most certainly result in a loss of messages for both
stations. Thus, the RTS Threshold mechanism will provide the solution to prevent data
collisions. When the RTS is activated, the station and its WL1100B-AR Wireless LAN
Access Router will use a Request to Send/Clear to send protocol (RTS/CTS). The station
will send an RTS to the WL1100B-AR Wireless LAN Access Router, informing that it is
going to transmit the data. Upon receipt, the WL1100B-AR Wireless LAN Access Router
will respond with a CTS message to all station within its range to notify all other stations to
defer transmission. It will also confirm to the requesting station that the WL1100B-AR
Wireless LAN Access Router has reserved the channel for transmission.
Fragmentation Threshold: Fragmentation mechanism is used for improving the efficiency
when there is high traffic within the wireless network. If you transmit large files in a
wireless network, you can enable the Fragmentation Threshold and specify the packet size.
The mechanism will split the packet into the packet size you set.