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The Impact of IP on Wireless Networks and Spectrum Management

The Impact of IP on Wireless Networks and Spectrum Management. Marc Girouard Spectrum Engineer Spectrum Engineering Branch Spectrum, Information Technologies and Telecommunication Sector Industry Canada RABC - FWCC Presentation, December 17, 1999 . Outline :

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The Impact of IP on Wireless Networks and Spectrum Management

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  1. The Impact of IP on Wireless Networks and Spectrum Management Marc Girouard Spectrum Engineer Spectrum Engineering Branch Spectrum, Information Technologies and Telecommunication Sector Industry Canada RABC - FWCC Presentation, December 17, 1999

  2. Outline: • A) Convergence Pressures ? • Network Capacity (Packet Switched) • Value Added Services (Data & Voice) • B) The 2 Faces of IP • User Traffic • Protocol Issues (VoIP, GOS, Security) • C) Spectrum Management • Duplex Separation & Bandwidth • Usual issues • D) Future Work

  3. A) Convergence Pressures: • Recent and Present information: • A recent IC study on the impact of IP on FWA systems • International Standards bodies such as the ITU and IETF • Statistics from various sources including commercial information • Trends observed in the Wired& Wirelesstelecommunications networks • Existing telecommunications industry in general • Evolution of current or near future wireless systems: • IMT-2000, FWA, RLAN, HDFS, Satellite

  4. Convergence: the bottom line is network capacity and available services.

  5. Value added services: • E-Commerce • Data • Integrated Billing • & Customer care • Multimedia • Voice • Mobility • VPNs • Web browsing • RAS/RMS • Rich Network Management • Email

  6. Circuit Switched Network • Dedicated channel for • duration of connection • Uses available capacity • inefficiently Packet Switched Network • Bandwidth is shared • More efficient use of capacity Increase Capacity by Moving from: To:

  7. Circuit Access Frame Relay Access Circuit Switching Frame/ATM Switching SONET Transport RF Transport Circuit Access IP Access Circuit Switching Frame Relay IP Switching Wireless SONET Transport SONET Transport PSTN Internet Mainly Voice Mainly Data Today’s Networks:

  8. New Converged Networks: • IPv4 is already the defacto • standard for internet networks • Data traffic is estimated to • exceed voice traffic by 2001 • Global market is estimated to • be $17 billion by 2002 IP, Circuit, Frame Relay Access IP and/or ATM with MPLS Switching DWDM & RF Transport Killen & Associates, IP Telephony: new markets for systems and service providers

  9. But what is IP ?

  10. B) The two faces of IP: INTERNET User (Information Content) IP PROTOCOL Network (technical standard)

  11. Factors to consider: User: Emails - Receive more than send (although, you may send to a list) WWW - Download a lot more than you upload (typically 10:1) Multimedia - Need high bandwidth, low latency Access speed - It’s never fast enough ! Network: Addressing - Address size is limited in current version of IP Switching - IP switching is just coming to market Security - No single standard GoS - Not available in current version of IP

  12. Packet traffic is bursty: Internet Traffic Traditional Voice Traffic 1 user Average Load 100 users Average Load Average Load Average Load 1 million users

  13. Regional Local Backbone Distribution Access ~ ~ ~ Asymmetric Network Traffic (or not): Satellite Server Farms Wireless CATV WDM Internet & Fibre SONET Copper Fibre Routes ATM & FR PSTN

  14. The Frequency Management Impact

  15. C) Spectrum Management Does Industry Canada need to modify the way spectrum is allocated for radio systems transporting packets ? • Allocation considerations: • Frequency bandwidth requirements • Duplex separation • Modulation • Access protocols • Bit rate • Interference • Evolution of IP/Packet protocols • IP considerations: • asymmetric and symmetric traffic • latency • multicasting • QoS • overhead • security • retransmission of packets • was not designed for wireless transport

  16. We Want To Hear From YOU !!!

  17. D) Future work: • CRC research project “Wireless, the way to the future” • Contract: “Impact of Wireless IP on Spectrum Management” • Follow National & International forums • Meet with Manufacturers and Operators

  18. The Impact of IP on Wireless Networks and Spectrum Management Marc Girouard Spectrum Engineer Spectrum Engineering Branch Spectrum, Information Technologies and Telecommunication Sector Industry Canada RABC - FWCC Presentation, December 17, 1999

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