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Fundamentals of WiMAX: Understanding Broadband Wireless Networking by The University of Texas at Austin Jeffrey G. Andrews Ph.D. - Department of Electrical and Computer Engineering, Ph.D. - AT&T Labs Inc. Arunabha Ghosh, Rias Muhamed - AT&T Labs Inc.

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Chapter 10WiMAX Network Architecture

Chapters 8 and 9 covered the details of the IEEE 802.16-2004 and IEEE 802.16e-2005 PHY and MAC layers. In this chapter, we focus on the end-to-end network system architecture of WiMAX.1 Simply specifying the PHY and MAC of the radio link alone is not sufficient to build an interoperable broadband wireless network. Rather, an interoperable network architecture framework that deals with the end-to-end service aspects such as IP connectivity and session management, security, QoS, and mobility management is needed. The WiMAX Forum’s Network Working Group (NWG) has developed and standardized these end-to-end networking aspects that are beyond the scope of the IEEE 802.16e-2005 standard.

This chapter looks at the ...

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