Following the path toward 4G set by its wireless siblings LTE and WiMax, IEEE 802.11 technology, universally known as WiFi,\r\nis evolving to become a high data rate QoS-enabled mobile platform. The IEEE 802.11n standard yields data rates up to 450\r\nMbp s and the 802.11e standard ensures proficient QoS for real-time applications. Still in need of better performance, multicell\r\nenvironments that provide extended coverage allow the mobile station nomadic passage beyond a single cell by means of cell\r\ndissociation-association process known as handoff. This process poses a challenge for real-time applications like voice over IP\r\n(150 ms maximum delay) and video (200ââ?¬â??400 ms) sessions, to give the user a seamless cell-crossing without data loss or session\r\nbreakage. It presented an approach of a predictive fuzzy Logic controller to reduce the channel scanning process to a tenth of the\r\nstandard time, and its efficient FPGA implementation to speed up the processing time. The algorithm of the fuzzy controller was\r\nimplemented in C language. Experimental results are provided.
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