User's Manual

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14. What is WMM?
Wi-Fi Multimedia (WMM), a group of features for wireless networks that improve
the user experience for audio, video and voice applications. WMM is based on a
subset of the IEEE 802.11e WLAN QoS draft standard. WMM adds prioritized
capabilities to Wi-Fi networks and optimizes their performance when multiple
concurring applications, each with different latency and throughput
requirements, compete for network resources. By using WMM, end-user
satisfaction is maintained in a wider variety of environments and traffic
conditions. WMM makes it possible for home network users and enterprise
network managers to decide which data streams are most important and assign
them a higher traffic priority.
15. What is WMM Power Save?
WMM Power Save is a set of features for Wi-Fi networks that increase the
efficiency and flexibility of data transmission in order to conserve power. WMM
Power Save has been optimized for mobile devices running latency-sensitive
applications such as voice, audio, or video, but can benefit any Wi-Fi device.
WMM Power Save uses mechanisms included in the IEEE 802.11e standard
and is an enhancement of IEEE 802.11 Legacy Power Save. With WMM Power
Save, the same amount of data can be transmitted in a shorter time while
allowing the Wi-Fi device to remain longer in a low-power “dozing” state.
16. What is GI?
GI stands for Guard Interval. It’s a measure to protect wireless devices from
cross- interference. If there are two wireless devices using the same or near
channel, and they are close enough, radio interference will occur and reduce
the radio resource usability.
17. What is STBC?
STBC stands for Space-Time Block Coding, which is a technique used to
transfer multiple copies of data by multiple antenna, to improve data transfer
performance. By using multiple antennas, not only data transfer rate is
improved, but also the wireless stability.
18. What is WPS?
WPS stands for Wi-Fi Protected Setup. It provides a simple way to establish
unencrypted or encrypted connections between wireless clients and access
point automatically. User can press a software or hardware button to activate
WPS function, and WPS-compatible wireless clients and access point will
establish connection by themselves. There are two types of WPS: PBC
(Push-Button Configuration) and PIN code.