Draytek VIGOR3220 SERIES, Руководство пользователя

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Vigor3220 Series User’s Guide 206
It is used for improving MAC layer’s performance for some
brand’s clients. The default setting is Enable.
Long Preamble This option is to define the length of the sync field in an
802.11 packet. Most modern wireless network uses short
preamble with 56 bit sync field instead of long preamble with
128 bit sync field. However, some original 11b wireless
network devices only support long preamble. Click Enable to
use Long Preamble if needed to communicate with this kind
of devices.
Packet-OVERDRIVE
TM
TX
Burst
This feature can enhance the performance in data
transmission about 40%* more (by checking Tx Burst). It is
active only when both sides of Access Point and Station (in
wireless client) invoke this function at the same time. That
is, the wireless client must support this feature and invoke
the function, too.
Note: Vigor N61 wireless adapter supports this function.
Therefore, you can use and install it into your PC for
matching with Packet-OVERDRIVE (refer to the following
picture of Vigor N61 wireless utility window, choose Enable
for TxBURST on the tab of Option).
Info * means the real transmission rate depends on
the environment of the network.
Antenna Vigor router can be attached with two antennas to have good
data transmission via wireless connection. However, if you
have only one antenna attached, please choose 1T1R.
Tx Power Set the power percentage for transmission signal of access
point. The greater the value is, the higher intensity of the
signal will be.
WMM Capable To apply WMM parameters for wireless data transmission,
please click the Enable radio button.
APSD Capable The default setting is Disable.
Rate Adaptation Algorithm Wireless transmission rate is adapted dynamically. Usually,
performance of “new” algorithm is better than “old”.