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AOS-W Instant 6.2.1.0-3.3| User Guide Adaptive Radio Management | 191
Chapter 17
Adaptive Radio Management
This chapter provides the following information:
l ARM Overview on page 191
l Configuring ARM Features on an OAW-IAP on page 193
l Configuring Radio Settings for an OAW-IAP on page 197
ARM Overview
Adaptive Radio Management (ARM) is a radio frequency management technology that optimizes WLAN
performance even in the networks with highest traffic by dynamically and intelligently choosing the best 802.11
channel and transmitting power for each OAW-IAP in its current RF environment. ARM works with all standard
clients, across all operating systems, while remaining in compliance with the IEEE 802.11 standards. It does not
require any proprietary client software to achieve its performance goals. ARM ensures low-latency roaming,
consistently high performance, and maximum client compatibility in a multi-channel environment. By ensuring the
fair distribution of available Wi-Fi bandwidth to mobile devices, ARM ensures that data, voice, and video applications
have sufficient network resources at all times. ARM allows mixed 802.11a, b, g, and n client types to inter operate at
the highest performance levels.
Channel or Power Assignment
The channel or power assignment feature automatically assigns channel and power settings for all the OAW-IAPs in
the network according to changes in the RF environment. This feature automates many setup tasks during network
installation and the ongoing operations when RF conditions change.
Voice Aware Scanning
The Voice Aware scanning feature prevents an OAW-IAP supporting an active voice call from scanning for other
channels in the RF spectrum and allows n OAW-IAP to resume scanning when there are no active voice calls. This
significantly improves the voice quality when a call is in progress and simultaneously delivers the automated RF
management functions. By default, this feature is enabled.
Load Aware Scanning
The Load Aware Scanning feature dynamically adjusts scanning behavior to maintain uninterrupted data transfer on
resource intensive systems when the network traffic exceeds a predefined threshold. The OAW-IAPs resume
complete monitoring scans when the traffic drops to the normal levels. By default, this feature is enabled.
Band Steering Mode
The Band Steering feature assigns the dual-band capable clients to the 5 GHz band on dual-band OAW-IAPs. This
feature reduces co-channel interference and increases available bandwidth for dual-band clients, because there are
more channels on the 5 GHz band than on the 2.4 GHz band. For more information, Configuring ARM Features on an
OAW-IAP on page 193.
Spectrum Load Balancing
The spectrum load balancing feature allows the APs in a cluster to be divided into several logical AP RF
neighborhood called domains, which share the same clients. When the Spectrum load balancing feature is enabled,
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