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The State of WiMAX October 7, 2004 Alan Menezes

This article discusses the end-user value proposition of WiMAX, including its benefits for broadband access and mobility. It covers topics such as the business model, user requirements, capacity, coverage, and cost implications. It also explores the timeline and success factors for WiMAX, as well as the benefits it offers for business and consumer services.

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The State of WiMAX October 7, 2004 Alan Menezes

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  1. The State of WiMAXOctober 7, 2004Alan Menezes

  2. Wireless Broadband – Fixed & Mobile • What’s the End-user Value Proposition? • Broadband Access • Mobility / Portability • Business Users or Consumers • Carrier Business Model • Business Subscribers or Consumers (ARPU) • Time to break-even & payback

  3. The Application defines the Network • Business Class Services or Consumer Services • Capacity, Coverage & Cost Implications • Varying User Requirements and Applications • Bandwidth or Performance versus Range • Host Model or Gateway Model • Fixed Broadband Access versus Portable or Mobile • First Mile Broadband or Mobile Wideband Access • Scalability of available Technologies • Wireless Broadband Access – IEEE 802.16a • Wireless LANs – Wi-Fi – IEEE 802.11a/b/g • User Self-Install for Consumer Internet Access • Portable or Mobile 3G Technologies

  4. Current Market Drivers – Fixed Access • Business Grade Services • IP-based network access with guaranteed SLA • T1/E1 and Fractional T1/E1 Replacement • High-end complement to DSL & Cable • Hot Spot / Hot Zone Network Backhaul • Wireless gateway: WiFi + WiMAX-class equipment • Campus networks backhaul • UMTS & Picocell backhaul

  5. Unified Broadband Access Subscriber Equipment Fixed Access Hot Spot & Hot Zone Backhaul Business SME Access Point BaseStation SOHO Subscriber Equipment Metro Area Network Cellular Mobile Network Backhaul

  6. Technology Timeline 1990’s 2000 ‘02 ‘04 ‘06 ‘08 ‘10 First Generation Systems 802.11 derivatives (fixed) Proprietary solutions Typically < 4 Mbps per channel (3.5 GHz) Business-grade Services 802.16-class Systems Second Generation Systems Carrier class 802.16 technologies with proprietary chips 4 to 20 Mbps per channel (3.5 GHz) Business & Consumer Services Standard compliant systems WiMAX certified interoperability Mass market for chips Up to 30 Mbps per channel (3.5 GHz) Portability 802.16e - nomadic WiMAX certified Limited mobility Total Cost per user

  7. Key Success Factors • Geographic Spectrum Availability • Standardization & Interoperability • Several Success Factors are different for Fixed versus Portable/Mobile • Cost Effectiveness • Commodity CPE for fixed • Laptop Integration for portable • VoIP becoming a key driver

  8. Access to Spectrum – Why It Matters • Propagation Characteristics & NLOS Performance depend on Spectrum • 2.4/2.5 GHz versus 5.8 GHz • Licensed versus Unlicensed • Every Solution is a Trade-off • Indoor Self-Install is not free • Multiple wall penetration means reduced range • Range /Cell Size affect Infrastructure Costs

  9. Coverage and Capacity Variations in Multiservice Wireless Access Picocell MicrocellMacrocell (indoor to 300 ft.) (campus to 5 km) (3 km to 50 km) 450 Roaming/UMTS Wireless Access Metropolitan Area - Fixed Broadband Wireless Access (IEEE802.16a / WiMAX) WLAN and HotSpot Wireless (Wi-Fi / 802.11x) 400 400 350 300 LoS-Only Range, Point-to-point O-LoS; LoS Range, N-LoS Point-to-multipoint N-LoS, O-LoS, LoS Range 250 Cells Required for Coverage 200 178 Indoor Portable Under Eave Rooftop 150 100 100 64 50 45 33 25 20 11 7 5 4 3 2 1 0 15 2 3 4 5 6 7 8 9 12 18 21 23 29 40 Coverage Radius (km)

  10. Myth: WiMAX could kill WLAN hotspots • WiFi Hotspots, Hotzones & mesh networks are driving “WiMAX-class” deployments • A significant issue in Hotspot and Hotzone deployment is backhaul • WiFi will continue to play an important role even with WiMAX on laptops – “Best Connected Philosophy”

  11. Benefits of WiMAX • Standardization provides service providers with the risk mitigation and cost roadmaps • It is the only solution to cost effectively bypass the incumbent without digging up the streets • Cost effectively extends the reach of fiber • Economics work today for business services with consumer services to follow • Wireless offers a key differentiation to wired • Portability & Roaming

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