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How to resolve the hidden node problem - Knowledgebase / Products / BAT / BAT, WLC (HiLCOS) - Belden Support Center

How to resolve the hidden node problem

In wireless networking, the hidden node problem or hidden terminal problem occurs when a node is visible from a wireless access point (AP), but not from other nodes communicating with that AP This leads to difficulties in media access control sublayer.
More information here:

To remedy Hidden node problem RTS/CTS mechanism is used between stations and AP but this mechanism on BAT is per default not so used.
Reason for that is that we can define a min frame size threshold for the frames which must be preceded by a RTS. Per default this threshold is 2347 bytes (resulting that only aggregate frames are preceded by a RTS).
Decrease this value if you want to avoid hidden nodes related problems. A value of 60 for example will extended the usage of RTS/CTS mechanism to each frame.

This threshold can be configured via LANconfig in:
Wireless LAN > General > Logical WLAN Settings > Transmission