1. Networking The Household Wayne Caswell HomeRF Communications Chairman 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. Peer Networking CD-ROM, Sound Card, DVD Mobile Phones Digital Cameras, Color Printers Even Sales Force Automation How Great Firms Fail: Blindly Listen to Customers. How Great Firms Fail: Blindly Listen to Customers.

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) Similarity Desktop PCs dominate Ethernet along the baseboard and to adjacent bedrooms 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 Telephone Communications Local Mobility Some Remote Access through Home Gateway

10. I nformation, C ommunications, and E ntertainment Markets are Converging HomeNetworking Voice, Data, and Entertainment Set Top Box Communication Information Web Pad PDA Entertainment Modem Phone BROADBAND Cable, xDSL,...

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

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

13. True Home Networking includes I nformation, C ommunications, E ntertainment POTS ISDN xDSL Cable

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

15. PC Services on Handset Display PC controls the handset 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 - Advantage ~ - Adequate X - Disadvantage Legend: X ~ Roaming Outside the Home~~~ ATTRIBUTEHomeRFBluetooth802.11b Cost Security Interference Immunity Toll-Quality Voice Support Streaming Media Support Data Throughput Range Power Consumption Form Factor Network Topology ~X ~X ~ X X X ~ X ~ ~~ ~

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

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

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

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

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

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

24. HomeRF is Neighbor Friendly ideal for Broadband avoids Interference

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

26. HomeRF

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