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Networking The Household

Wayne Caswell HomeRF Communications Chairman. Networking The Household. Separating the Home from the Workplace. HomeNET Forum: Winter 2001. Separating the Home from the Workplace. Do Technologies move Up-market or Down? Telecommuting & Mobility (Benefits of Work-at-Home)

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Networking The Household

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  1. Wayne Caswell HomeRF Communications Chairman Networking The Household Separating the Home from the Workplace HomeNET Forum: Winter 2001

  2. Separating the Home from the Workplace • Do Technologies move Up-market or Down? • Telecommuting & Mobility(Benefits of Work-at-Home) • Environmental Differences(Home Network issues) • Application Differences

  3. Do Technologies move Up-market or Down? Enterprises loaded OS/2. Window was preloaded. Users familiar with Windows. IBM PC introduced in 1981, but not sold in Enterprises until 1984.

  4. Technologies move Up-market, not Down. CD-ROM, Sound Card, DVD How Great Firms Fail: Blindly Listen to Customers. Mobile Phones Digital Cameras, Color Printers Peer Networking Even Sales Force Automation

  5. Telecommuting & Mobility BENEFITS • Improved Morale (60%) • Employee Work / Life Balance (43%) • Office Real Estate Savings (33%) • Flexibility in Hiring (parent w/ kids) • More Customer Face-time ROAD BLOCKS • Mid-Management Objection (25%) • Inadequate IT (19%) The 15 second commute. Always available. (Source: Kinetic Workplace survey prior to September 11)

  6. Environmental Differences - Enterprise Offices • Hollow Walls • Hung Ceilings • Raised Floors • NW Administrators • Corporate Budget • Hard Surfaces (wireless reflections) Similarity • Desktop PCs dominate

  7. Environmental Differences - Homes • Fire Blocks • Slab Foundations • Land Lords • Local Mobility • Voice, Data, Music, TV • Mom (as admin?) • Personal Budget • Soft Carpet (wireless absorption) Ethernet along the baseboard and to adjacent bedrooms Similarity • Desktop PCs dominate Wireless for Convenience

  8. Application Differences - Enterprise Offices • Data Applications • E-mail • Microsoft Office • Application Servers • SAP • Remote Access • Customers, Homes, Hotels • VPN Security • Campus Roaming(wireless)

  9. Application Differences - Homes • Extends Beyond DATA • E-mail, Web browsing,Gaming, Photo editing, Microsoft Works • Digital Music • Television • TelephoneCommunications • Local Mobility • Some Remote Accessthrough Home Gateway

  10. Set Top Box Phone Modem Information,Communications, and Entertainment Markets are Converging Entertainment Home Networking Voice, Data, and Entertainment Web Pad BROADBAND Cable, xDSL, ... Information PDA Communication

  11. US Cordless Phone Market +9% +27% 2.4 GHz +11% +37% 900 MHz Sources : CEA & Intersil 900MHz Digital 2.4GHz 2.4GHz Digital MultiHandset

  12. Multi-Line, Multi-User Phones are Voice Only Home Networks Voice Device POTS ISDN Voice Device Voice Device

  13. True Home Networking includes Information, Communications, Entertainment POTS ISDN xDSL Cable

  14. Existing Upper Layers UDP TCP DECT IP HomeRF MAC Layer Priority CSMA TDMA CSMA/CA HomeRF PHY Layer “Ethernet” Data Path Toll-Quality Voice Path Streaming Media Path HomeRF Network Layers

  15. PC Services on Handset Display PC controls thehandset display, receives all key presses. First Step: Text menus Text display Next Steps: Scripting Extensions UPnP Proxy SDK Speech recognition Text-to-Speech

  16. Bandwidth Requirements

  17. Wireless Choices for the Broadband Internet home ATTRIBUTE HomeRF Bluetooth 802.11b Cost  ~   Security  ~ X Interference Immunity   X ~ Toll-Quality Voice Support  ~ X Streaming Media Support  ~ X ~ Data Throughput  X  Range  X  Power Consumption   X ~ Form Factor   X ~ Network Topology  ~ ~ Roaming Outside the Home ~ ~ ~ ~- Adequate X- Disadvantage - Advantage Legend:

  18. Homes have More Absorption, Less Reflection Signals can arrive at different times and cancel each other out.

  19. 300’ 0’ 50’ 90’ 130’ ~5 Mbps Throughput ~2.5 Mbps ~1 Mbps ~0.5 Mbps RANGE: Signal Strength Diminishes with Distance 1 Mbps 2 Mbps 5 Mbps Advertised Data Rate: 11 Mbps

  20. MPEG2 Video Broadband/ MPG 4 Video Dial-up / MP3 Audio 802.11b HRF 2.0 Performance over DistanceHomeRF 2.0 vs. 802.11b HomeRF provides real-time media streaming to more nodes over a greater distance. 6 5 4 Nominal throughput (Mbps) 3 2 1 0 10' 20' 30' 40' 50' 60' 70' 80' 90' 100' 110' 120' 130' 140' 150' Source: Practical and Theoretical Calculations

  21. The Higher the Frequency, the more signal loss.5 GHz is worse than 2.4 GHz. ATTENUATION: Signal Strength Diminishes through Materials Wood and plaster Walls or Floors are OK. Even Brick. BUILDING WALL Metal and thick rock block the RF signals.

  22. HomeRF Does Not Compromise Security … … Like Wi-Fi Does BUILDING WALL Trivial task to bypass Wi-Fi security w/ standard products

  23. Ethernet Internet HomePNA or HomePlug Gateways offer Firewall Security But Power Line & RF extend Outdoors, so beware of Compromises!

  24. HomeRF is Neighbor Friendly ideal for Broadbandavoids Interference

  25. HomeRF Hops Out of Interference FHSS DSSS Frequency Time Time IEEE 802.11b waits for Interference to go away

  26. HomeRF

  27. Thank you Wayne.Caswell@ ICM.Siemens.com

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