**1. Introduction**

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IEEE 802.16 provides last mile broadband wireless access. Also called as WiMAX, IEEE 802.16 is rapidly being adopted as the technology for Wireless Metropolitan area networking (MAN). WiMAX operates at the microwave frequency and each WiMAX cell can have coverage area anywhere between 5 to 15 kilometers and provide data rates upto 70Mbps.

IEEE 802.16m has been submitted to ITU as a candidate for 4G. With data rates of 100Mbps for mobile users and 1Gbps for fixed users, IEEE 802.16m holds a lot of promise as a true 4G broadband wireless technology.

This chapter introduces a user based framework in WiMAX. In section 2, user based bandwidth allocation algorithms are introduced. In section 3, user based packet classification mechanism is explored. In section 4 user based call admission control algorithm is explored.
