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Wifi

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Wi-Fi Alliance certification is constantly evolving to ensure that Wi-Fi CERTIFIED products include the latest enhancements to the IEEE 802.11 standard and to support a growing set of applications and devices. As a result, Wi-Fi functionality is extended and its performance improved, while retaining backward compatibility with legacy Wi-Fi
CERTIFIED products.
The work of the IEEE 802.11 working group in areas that include enhancements in performance, security and roaming will keep Wi-Fi technology steadily improving.
Among the most anticipated enhancements is IEEE 802.11n which will bring increases in throughput enabled by MAC and PHY technology innovations.
Wi-Fi users have grown accustomed to the basic data functionality that Wi-Fi affords them. They have started to use Wi-Fi in new applications and devices and expect to have the same satisfactory experience as with their laptops. These new applications and devices, and the end user expectation of Wi-Fi in them, are the main drivers for the development of new Wi-Fi Alliance certification programs.
Most emerging applications have a real-time component that translates into more stringent performance and conformance requirements. This has created a gradual shift towards an increased emphasis on these test areas in Wi-Fi Alliance certification and in the development of specific new programs designed to improve performance so that
Wi-Fi CERTIFIED products can support these new applications.
Wi-Fi and mobile convergence is driving further evolution in Wi-Fi Alliance certification.
The introduction of Wi-Fi mobile phones and PDAs is pushing certification beyond the realm of Wi-Fi as these devices host multiple wireless interfaces and switch between them as necessary. For instance, with an Unlicensed Mobile Access (UMA) phone subscribers can make and receive calls using the local Wi-Fi network and maintain an active call as they move between their Wi-Fi network and the cellular macro radio access network.

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