Abocom 802.11b/g Portable Router WAP2102 - Manual (Page 24)

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Advanced Settings Click Setup button to enter the Wireless Advanced Settings page.
Fragment Threshold: Fragmentation mechanism is used for
improving the efficiency when high traffic flows along in the
wireless network. If your 802.11g Wireless LAN PC Card often
transmit large files in wireless network, you can enter new
Fragment Threshold value to split the packet. The value can be set
from 256 to 2346. The default value is 2346.
RTS Threshold: RTS Threshold is a mechanism implemented to
prevent the “Hidden Node” problem. “Hidden Node” is a situation
in which two stations are within range of the same Access Point,
but are not within range of each other. Therefore, they are hidden
nodes for each other. When a station starts data transmission with
the Access Point, it might not notice that the other 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 Access Point. The collision will most
certainly result in a loss of messages for both stations.
Thus, the RTS Threshold mechanism provides a solution to
prevent data collisions. When you enable RTS Threshold on a
suspect “hidden station”, this station and its Access Point will use
a Request to Send (RTS). The station will send an RTS to the
Access Point, informing that it is going to transmit the data. Upon
receipt, the Access Point will respond with a CTS message to all
station within its range to notify all other stations to defer
transmission. It will also confirm the requestor station that the
Access Point has reserved it for the time-frame of the requested
transmission.
If the “Hidden Node” problem is an issue, please specify the
packet size. The RTS mechanism will be activated if the data size
exceeds the value you set. The default value is 2346.
Warning: Enabling RTS Threshold will cause redundant
network overhead that could negatively affect the
throughput performance instead of providing a remedy.
This value should remain at its default setting of 2346. Should you
encounter inconsistent data flow, only minor modifications of this
value are recommended.
Inactivity Time: By default, the unit adaptively selects the highest
possible rate for transmission.
Preamble Type: A preamble is a signal used in wireless