D-Link DIR-820 User Manual page 128

DIR-820 AC1200 Wave 2 MU-MIMO Wi-Fi Router
User Manual
Parameter
Drop multicast
Enable TX
Beamforming
STBC
Enable 802.11k
Enable 802.11v
Move the switch to the right to disable multicasting for the router's
WLAN. Move the switch to the left to enable multicasting from the
WAN connection selected on the Advanced / IGMP page. If the
switch is moved to the right, the device will not be available by the
domain name for Wi-Fi clients.
Available on the 2.4 GHz tab.
TX Beamforming is the signal processing/directing technique which
helps to support a high enough transfer rate in the areas with difficult
conditions for the signal propagation.
Move the switch to the right to improve the signal quality.
The STBC (Space-time block coding) technique allows increasing
data transfer reliability even for portable devices equipped with poor
antennas (smartphones, pads, etc.) due to using several data streams
and processing several versions or received data.
Move the switch to the right if you need to use the STBC technique.
802.11k standard allows faster roaming of clients between access
points within the same network. Clients supporting 802.11k standard
can request a list of neighbor access points with their signal levels
and Wi-Fi channel numbers. The device does not need to probe all of
the available channels, but selects an access point to roam to from
the list.
Move the switch to the right if you need to use 802.11k standard.
802.11v roaming allows improving the wireless client load
balancing.
If the wireless access point supports 802.11v standard, then with a
large number of devices connected to this point, a request may be
sent to some clients to switch to a less loaded point with the same
network parameters or to transfer from a loaded band to a freer band
(in case the SSID and security settings are the same in both
frequency bands) to improve operation of each client. The request is
advisory, upon that the device does not forcibly disconnect clients.
Move the switch to the right if you need to use 802.11v standard.
The switch is displayed if the Enable 802.11k switch is moved to
the right.
Page 128 of 210
Configuring via Web-based Interface
Description