Adaptive Radio Management; Arm Overview - Siemens SCALANCE W1750D UI Configuration Manual

Adaptive Radio Management

21.1

ARM Overview

Adaptive Radio Management (ARM) is a radio frequency management technology that
optimizes WLAN performance even in networks with the highest traffic by dynamically and
intelligently choosing the best 802.11 channel and transmitting power for each AP 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 a fair distribution of the 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, n, and ac client types to interoperate
at the highest performance levels.
Channel or Power Assignment
The channel or power assignment feature automatically assigns channel and power settings
for all the APs 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 AP supporting an active voice call from
scanning for other channels in the RF spectrum and allows the AP 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 function to maintain
uninterrupted data transfer on resource-intensive systems when the network traffic exceeds
a predefined threshold. The APs resume complete monitoring scans when the traffic drops to
the normal levels. By default, this feature is enabled.
Monitoring the Network with ARM
When ARM is enabled, an AP dynamically scans all 802.11 channels within its 802.11
regulatory domain at regular intervals and sends reports to a VC on network (WLAN)
coverage, interference, and intrusion detection.
SCALANCE W1750D UI
Configuration Manual, 02/2018, C79000-G8976-C451-02
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