Bluetooth: Present & Future

1. Bluetooth: Present & Future Presented by: Brian Linger Clay Pollard Mike Busenberg November 25, 2002

2. We Plan to Discuss • What Bluetooth is • Why it’s useful • The current state of Bluetooth technology • Problems with Bluetooth • Future uses of Bluetooth

3. Bluetooth Development • Originally conceived by Ericsson • At first, only meant to eliminate wires between Ericsson phones and accessories • Later, idea spread to PCs and the possibility of communication between devices with Bluetooth chips

4. Wide Area Network Local Area Network Intended Ranges Personal Area Network RANGE 0-10 meters 0-100 meters 0-10+ kilometers

5. Bluetooth SIG • To be sure the technology would work with different devices, they started the Bluetooth Special Interest Group • Two market leaders in mobile telephony • Two market leaders in laptop computing • One market leader in core digital-signal-processor technology

6. Uses 2.4 GHz radio frequency spectrum Connects with devices without line of sight World-wide compatibility with the use of an unlicensed band How It Works

7. Bluetooth Microchip • The Bluetooth microchip is available in two different power levels • Lower power level that covers the shorter personal area within a room • Higher power level that covers a medium range, such as within a home

8. Device manufacturers • Access points • Fujitsu • Siemens • Headsets and Telephony • Ericsson • Motorola • GN Netcom

9. Device Manufacturers • Laptop Computers • Compaq • Sharp • Toshiba • PC cards and Adaptors • 3Com • IBM • Intel • TDK

10. PDA’s Printers Workstations Cellular phones Headphones Video game consoles Video cameras Cameras Laptops 0100101100101011010111000101010101010001010101101001010101001100101010 Compatible Products

11. What Makes Bluetooth So Useful • It is a world-wide standard • Access points provide internet access to Bluetooth devices • Easy roaming onto other Bluetooth networks • Devices automatically find the closest access point • Eliminates wires making mobile applications easier

12. Bluetooth-Bluetooth Compatibility • ANY Bluetooth device can communicate with ANY other Bluetooth device • Devices automatically “discover” each other • Each device sends the required information about itself to the other device • No drivers to install • Each device will remember the other so a future meeting of the two will not require discovery

13. Small Security Risk • Link level security makes devices set up security procedures before linking information • Service level security offers more flexibility in application access

14. Current State of Bluetooth • Chips can drive up price of a device an extra $100 • Currently uses version 1.1 • Speed is same as older version 1.0b • Updated problems • New standard for implementation • Maintains piconet when master leaves • Everything else remains the same between versions 1.0b and 1.1

15. Most Common Uses • PDAs for synchronization • Printing from PDAs and computers • Headsets for cellular phones • Phone can be in briefcase • Voice activated dialing • Access points not widely used yet

16. Bluetooth as WLAN

17. Problems with Bluetooth • Interference with other wireless devices • Cordless phones • 802.11 specification • Microwaves

18. Problems • Slow speeds • Only rated up to 1 Mbps and often runs slower • Inability to function over long distances • Interoperability • May be difficult to transfer a file or receive a call • Many devices just don’t work well with each other

19. Bluetooth Problems Continued • Not choice of large businesses • Incapable of transmitting over large distances • Security issues • Short range causes the need for many access points, which drives cost up

20. Future Outlook • Positive outlook even despite the problems • Fueled by expected price drop • New versions to come • Innovative New uses yet to come

21. Bluetooth Comparison • Additional Specifications • 2.0 Will use twice the power of 1.1 and 1.2 • 2.0 Treats all devices equally

22. Bluetooth WLAN • Netario created a Bluetooth WLAN in Manchester, UK • Access points in restaurants and hotels • 70 Access points across the city • Can transmit up to 100 meters • Subscription service for public and corporations • Bluetooth 2.0 will make these more common and more economically feasible.

23. The Future • Bluetooth price will eventually drop to $5 to $10 per chip • Implemented in 670 million by 2005 • Once more devices are available we will see more uses in both the home and away from home

24. Future Uses In the Home • As you walk to the front door with a had full of groceries, your Bluetooth enabled PDA automatically unlocks the door and turns on the lights • Your PDA morphs from business to personal as you enter your home. An electronic bulletin board in the home automatically adds your scheduled activities to the family calendar, and alerts you of any conflicts

25. Future Uses Away from Home • As you enter a national park, a map of the park appears on your display. You can view the schedule of activities for the park and your own personal electronic tour guide is downloaded to your vehicle • Anxious to see the first run movie, you arrive at the theater to find a long line at the ticket counter. Using your Bluetooth technology PDA to wirelessly confirm and pay for your tickets, you avoid the long line, enter the theater, and take your preferred seat

26. What We Think • Great for replacing wires • Version 2.0 will have much better acceptance and have a larger market share of WLANs • Will make everyday living much easier

27. References Barber, Richard. (2000). “Security in a Mobile World – Is Bluetooth the Answer?” Computers & Security, 19, 321 – 325. Blue Unplugged. (5 November 2002). www.BlueUnplugged.com. “Bluetooth Wireless – How it works.” Bluetooth. http://www.bluetooth.com/tech/works.asp. Broersma, Matthew. (14 June 2000). “Analysis: Teething Problems for Bluetooth?” ZDNet. http://news.zdnet.co.uk/story/0,,t269-s2079556,00.html Bruederle, Stanley. (24 July 2002). “Bluetooth Poised to Achieve Potential; Interoperability Could Kill Market.” Gartner, SEMC-WW-DP-0159. Byrne, Joseph & Bruederle, Stanley. (07 March 2002). “Managing Possible Interference Between Bluetooth and Wireless LANs.” Gartner, SEMC-WW-DP- 0107. Clark, William. (26 August 2002). “Bluetooth Needs and Enterprise – Grade Solution.” Gartner, T-16-8418. Gupta, Puneet. “Bluetooth Technology.” http://www.mobileinfo.com/Bluetooth/

28. References Hiller, Kimberly. (18 April 2002). “Bluetooth Wireless Technology: An Overview.” Gartner, DPRO-91115. Holtby, Troy. (13 August 2001). Bluetooth 1.1 Addresses Earlier Flaws. Network World. http://www.nwfusion.com/news/tech/2001/0813tech.html. Leyden, John. (31 October 2001). “Bluetooth Gives Bite to High Speed Wireless Network.” Blue 2 Space. http://www.blue2space.com/PDF/The%20Register %20011031.pdf. Pegoraro, Rob. (28 July 2002). “The Bluetooth Blues Play On.“ The Washington Post, H07. Tay, C.C. (16 July 2002). Bluetooth. http://www.geocities.com/tcchian/index.html Wildstrom, Stephen H. (10 June 2002). “Bluetooth: For Now, It’s a Pain.” Business Week Online. http://www.businessweek.com:/print/magazine/ content/02_23/b3786026.htm?mainwindow. Yoshido, Junko. (17 June 2002). “Scientist Tips Features of Bluetooth 2.0.” EE Times. http://www.eetimes.com/story/OEG20020611S0033.