Справочник Пользователя для ZyXEL Communications NWA1100-N

 Chapter 6 Wireless Settings Screen

NWA1100-N User’s Guide

This section provides technical background information about the topics covered in this chapter. 
Refer to 

 for further readings on Wireless LAN.

WMM (Wi-Fi MultiMedia) QoS (Quality of Service) ensures quality of service in wireless networks. It 
controls WLAN transmission priority on packets to be transmitted over the wireless network.

WMM QoS prioritizes wireless traffic according to the delivery requirements of the individual and 
applications. WMM QoS is a part of the IEEE 802.11e QoS enhancement to certified Wi-Fi wireless 
networks.

Extension channel 
protection mode

You can use CTS to self or RTS-CTS protection mechanism to reduce 
conflicts with other wireless networks or hidden wireless clients. The 
throughput of RTS-CTS is much lower than CTS to self. Using this mode 
may decrease your wireless performance.

A-MPDU aggregation 

This field is available only when 802.11 b/g/n is selected as the Wireless 
Mode. Select Enable to allow the grouping of several A-MSDUs (Aggregate 
MAC Service Data Units) into one large A-MPDU (Aggregate MAC Protocol 
Data Unit). This function allows faster data transfer rates.

Short GI 

This field is available only when 802.11 b/g/n is selected as the Wireless 
Mode. Select Enable to use Short GI (Guard Interval). The guard interval 
is the gap introduced between data transmission from users in order to 
reduce interference. Reducing the GI increases data transfer rates but also 
increases interference. Increasing the GI reduces data transfer rates but 
also reduces interference.

Rates Configuration

This section controls the data rates permitted for clients. 

For each Rate, select an option from the Configuration list. The options 
are:

•

Basic (1~11 Mbps only): Clients can always connect to the access point 

at this speed.

•

Optional: Clients can connect to the access point at this speed, when 

permitted to do so by the AP.

•

Disable: Clients cannot connect to the access point at this speed.

MCS Table

The MCS Rate table is available only when 802.11 b/g/n is selected in the 
802.11 Wireless Mode field.

IEEE 802.11n supports many different data rates which are called MCS 
rates. MCS stands for Modulation and Coding Scheme. This is an 802.11n 
feature that increases the wireless network performance in terms of 
throughput. 

For each MCS Rate (0-15), select either Enable (default) to have the NWA 
use the data rate. Select Disable if you do not want the NWA to use the 
data rate. 

Apply

Click Apply to save your changes.

Cancel

Click Cancel to begin configuring this screen afresh.

Wireless > Wireless Settings: MBSSID (continued)

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