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WiMax. German Tavrisov Lovander Powell. Overview. Introduction History Application Competing Technologies WiMax Protocol Stack. What is WiMax?. Worldwide Interoperability for Microwave Access OFDMA Performance similar to WiFi with coverage of cellular networks. Standards initiative

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Wimax

WiMax

German Tavrisov

Lovander Powell


Overview
Overview

  • Introduction

  • History

  • Application

  • Competing Technologies

  • WiMax Protocol Stack


What is wimax
What is WiMax?

  • Worldwide Interoperability for Microwave Access

  • OFDMA

  • Performance similar to WiFi with coverage of cellular networks.

  • Standards initiative

    • IEEE 802.16


History
History

  • 1990s

    • Telecoms investigate wireless networks for low cost last mile connectivity.

  • 1999

    • IEEE 802.16

      • Fixed WiMax

  • 2001

    • WiMax Forum established

  • 2005

    • IEEE 802.16e

      • Mobile WiMax


Application
Application

  • Mobile Broadband

  • Solution to “Last Mile”

  • Triple Play

  • Wireless Backhaul


Wimax vs wifi
WiMax vs WiFi

  • MANs vs LANs

  • High Cost vs Low

  • Licensed vs Unlicensed

  • Low speed vs high speed

  • Mobility

  • QoS


Wimax vs lte
WiMax vs LTE

  • Standards based vs Proprietary

  • Deployment

  • Backhaul vs Access




Phy layer
PHY LAYER

  • OFDM/OFDMA

  • Modulation and Coding

  • Data rates



Security layer
Security Layer

  • Basic attacks at the PHY layer

    • Jamming

    • and packet scrambling

  • Security Threats

    • Man in the middle

    • Denial of Service(protocol)

      and (physical)

  • Security Measures

    • PKE, EAP,& EAS



Public key infrastructure
Public Key Infrastructure



Mac layer
MAC Layer

  • Frame Structure

  • QOS: five classifications

    -UNGS, rtPs, nrtPs,ertPs,and BE



Network layer
Network Layer

  • The various IEEE 802.16

    • Various ranges of the

      standard IEEE, d, e, & m

  • CPN- Customer Premise Network

  • CSN- Connectivity Service Network

  • APN- Access Service Network



References
References

  • [1] What is WIMAX. Wimax.com Broadband Solutions, Inc. [Online]. Available: http://www.wimax.com/general/what-is-wimax

  • [2] History of WIMAX. Quantum Networks, LLV. [Online]. Available: http://quantumwimax.com/index.php?page=History-of-Wimax

  • [3] WimaxvsWifi. [Online]. Available: http://freewimaxinfo.com/wimax-vs-wifi-comparison.html

  • [4] R. Henshaw. Why the wimax vs. LTE battle isn’t a battle. Wimax.com Broadband Solutions, Inc. [Online]. Available: http://www.wimax.com/lte/why-the-wimax-vs-lte-battle-isnt-a-battle

  • [5] What is IEEE 802.16? Wimax.com Broadband Solutions, Inc. [Online]. Available: http://www.wimax.com/wimax-technologies-standards/what-is-ieee-802.16x

  • [6] T. Sanders. Fiver Essential Elements of Wimax Security. Wimax.com Broadband Solutions, Inc. [Online]. Available: www.wimax.com/wimax/five-essential-elements-of-wimax-security

  • [7] P. DeBeasi. Wimax security. Burton Group. [Online]. Available: http://ntsblog.burtongroup.com/network_and-telecom_strat/2008/10

  • [8] I. Poole. Wimax mac layer. Adrio Communications Ltd.

  • [9] AIRCCSE International Journal of Computer Networks and Communications (IJCNC). [Online]. Available: http://airccse.org/journal/ijcnc.html


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