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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 3The Challenge of Broadband Wireless Channels

Achieving high data rates in terrestrial wireless communication is difficult. High data rates for wireless local area networks, namely the IEEE 802.11 family of standards, became commercially successful only around 2000. Wide area wireless networks, namely cellular systems, are still designed and used primarily for low-rate voice services. Despite many promising technologies, the reality of a wide area network that services many users at high data rates with reasonable bandwidth and power consumption, while maintaining high coverage and quality of service, has not yet been achieved.

The goal of the IEEE 802.16 committee was to design a wireless communication system that incorporates the most ...

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