ChannelFly is a RUCKUS-patented adaptive channel management technology. Unlike traditional methods that only scan for interference, ChannelFly actively measures the real-world throughput of all available Wi-Fi channels. It briefly directs a small amount of client traffic to other channels to learn their actual performance characteristics, including data rates and conditions. Based on this empirical data, it calculates the capacity of each channel and dynamically switches the Access Point (AP) to the channel that offers the highest throughput, thereby optimizing network performance.

A. BeamFlex+: This is an adaptive antenna technology that directs RF energy toward a specific client on a per-packet basis to improve signal strength, not for selecting the operating channel.

C. SmartCast: This is a Quality of Service (QoS) engine that prioritizes different types of traffic (e.g., voice, video) to optimize application performance, but it does not manage channel selection.

D. PD-MRC: Polarization Diversity-Maximal Ratio Combining is a technology that complements BeamFlex+ by improving signal reception from clients whose orientation changes, but it is not a channel selection mechanism.

1. RUCKUS Networks Official Documentation, "ChannelFly: Adaptive Channel Management" White Paper.

Page 2, "How ChannelFly Works" section: "ChannelFly is a new approach to channel selection that improves wireless performance by dynamically finding the best channel to use at any given time... ChannelFly assesses all channels and determines the one that will provide the highest client throughput." This document explains the core mechanism of learning and selecting channels based on performance.

2. RUCKUS Networks Official Documentation, "RCWA 100 - RUCKUS Certified Wi-Fi Associate Study Guide".

Module 3: RUCKUS Wireless Technologies, "ChannelFly" section: "ChannelFly is a Ruckus-patented technology that helps APs to select the best RF channel... it uses this information to calculate the capacity of each channel. The AP then moves to the channel with the highest calculated capacity." This directly confirms the function described in the question.

3. RUCKUS Networks Official Documentation, "RUCKUS Technology: BeamFlex+" White Paper.

Page 1, Introduction: "BeamFlex+ is a patented smart antenna technology that maximizes signal coverage, throughput, and network capacity. It steers Wi-Fi signals to the best performing path to a wireless client..." This reference clarifies that BeamFlex+ is about signal steering, not channel selection.