Wi-Fi Array
Introduction 21
Xirrus Advanced RF Performance Manager (RPM)
The Xirrus RPM optimizes the bandwidth usage and station performance of
802.11n Wi-Fi networks. Leveraging the multiple integrated access point (multi-
radio) design of the Xirrus Wi-Fi Array, RPM manages the allocation of wireless
bandwidth to wireless stations across multiple RF channels. The result maximizes
overall network performance with superior flexibility and capacity.
Today's wireless infrastructure is faced with ever increasing numbers and
variations of Wi-Fi enabled clients, whether in the form of notebooks, netbooks,
smart phones, IP phones, printers, projectors, cameras, RFID tags, etc. The advent
of higher speed 802.11n Wi-Fi and its increased use of the 5GHz spectrum adds to
the number of variables today's wireless networks must accommodate.
Backwards compatibility with older clients is crucial, however their operation in a
Wi-Fi network can significantly hinder the performance of faster clients. As an
example, 802.11b Wi-Fi stations communicate more than 10 times slower than
802.11n stations.
With each of the Array’s multiple radios operating on a different channel, RPM
selects the ideal radio for each station. High-speed stations are grouped together
on radios with other high speed stations, while lower speed stations are combined
with other lower speed stations. This ensures optimal performance for high-speed
802.11n stations without compromise.
The complete feature set of the RPM package includes:
WDS (Wireless Distribution System) for point-to-point communication
Wi-Fi Mode per IAP
Sharp Cell technology
Wireless Data Rate Optimization
Wireless Traffic Shaping
Wireless Voice Call Admission Control
Fast Layer 2 and 3 Roaming
Standby Mode
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