Chapter 1. The Need for Controller-Based Wireless Networks

Wireless local-area networks (WLAN) have evolved as the quantity and types of mobile devices have increased. The number of devices that support Wi-Fi continues to expand. The term Wi-Fi is an industry acronym meaning wireless fidelity for devices with support for the IEEE 802.11 wireless standard. This means the device has been certified to meet interoperability standards established by the Wi-Fi Alliance. The type of devices that include Wi-Fi support continues to expand from laptops to many other devices, such as cameras, phones, automobiles, and other consumer devices. The uses of Wi-Fi have expanded beyond just data usage, often including voice, video, and innovative contextual ...

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