CNET CWR-854 - Manual (Page 26)

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3.3.2 Wireless Advanced Settings
In Advanced Settings page, more 802.11 related parameters are tunable.
 Authentication Type: The router supports three kinds of the authentication types-
Open System, Shared Key, and Auto.
 Fragment Threshold: Fragmentation mechanism is used for improving the
efficiency when traffic is high in the wireless network. If a wireless client often
transmits large files, 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 wireless access point/router, but are not within range of
each other. Therefore, they are hidden nodes for each other. When a station starts
data transmission with the Wireless-G Router, 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 simultaneously arriving at the
Wireless-G Router. The collision will most certainly result in loss of messages of
both stations. 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 2347.
 Beacon Interval: Beacon interval is the amount of time between beacon
transmissions. Before a station enters power save mode, the station needs the
beacon interval to know when to wake up to receive the beacon (and learn
whether there are buffered frames at the wireless router).
 Data Rate: By default, it selects the highest rate for transmission.
 Preamble Type: A preamble is a signal used in wireless environments to
synchronize transmit timings including Synchronization and Start Frame Delimiter.
In a “noisy” network environment, Preamble Type should be set to Long. The
Short Preamble is intended for applications where minimum overhead and