I m Dreaming of a Wireless Building

Transcription

1 I m Dreaming of a Wireless Building AIA Convention presentation June 11, 2004 Presented by Elert & Associates Frank Dolejsi Minnesota Bureau of Criminal Apprehension (BCA) Mark Hoekstra Skyline Exhibits Wendy Chretien E&A Dave Kaun E&A

2 Agenda! 15 minutes Wireless tech primer! minutes BCA case study! minutes Skyline case study! minutes Wireless design considerations! 15 minutes Q & A

3 Demand for Wireless! Wireless Internet access! Cell phone users! Police, Fire and other 1 st Responders! Building support and Maintenance staff! Get rid of wires

4 Terms! WLAN! ( b a and g )! Wi-Fi! AP (Access Point)! Interface! Client! DAS (In-building repeater)

5 802.11b, a & g comparison! Shared medium! Throughput (speed)! Frequencies Interference Multiple modes! Coverage area! Home vs. enterprise products

6

7 Other in-building wireless technologies to consider! Paging! Cellular voice! Public Safety communications! Two-way way radio (internal)

8 Elements in building design! Open areas/ cube farms! User density and mobility! Cable pathways/risers! Telecom room space esp. for DAS repeater equipment

9 MN BCA Forensic Science Laboratory Saint Paul, Minnesota Frank Dolejsi Director

10 Why Wireless?! Interactions between labs! Interactions with evidence reception! Interactions with law enforcement! Multiple labs and offices! Interactions with county attorneys

11 Wireless Phones in a Lab Setting! Mitel voice over IP system With Symbol wireless handsets

12 Lessons To Be Learned! Wireless phones as a primary device! Interferences analog wireless telephones wireless barcode readers

13 Just The Beginning of Our Journey! Wireless Palm Pilots! Wireless computers! Cell phones & Pagers! Public Safety communications

14 Skyline Exhibits, Inc.

15 Skyline Exhibits Marketing Communications Tradeshow & Event Exhibits Design, Manufacture, Rent & Service 24 Years Old 138 Offices in 43 Countries

16 Mirage Popup Exhibit

17 Williams Scotsman

18 Versalux

19 DOMCO

20 International Design Center Back in 1998 Five Locations in Suburb of Minneapolis/St. Paul 350 Employees Accelerating growth Collaboration difficulties mounting New Facility 280,000 ft 2 facility to consolidate operations Wide-open environment inside Mimic tradeshow environment Focus on collaboration Reconfigurable facility Mobile work force

21

22 Mobile Phones take one (October 1998) Process Hired experts to help with RFP Most vendors cautious about a wide-open facility Choices Results Most seasoned vendor who was less sure about facility Previous vendor who was confident about their technology Technology failed Antenna handoff problems

23 Lessons Learned Selecting a Platform Ask a lot of questions, then ask more Visit largest installation Understand handset limitations Test, Test, Test Don t over deploy wireless phones

24 Lessons Learned Structuring the Deal Explicit performance guarantees Phase in the wireless deployment Tie payment milestones to performance

25 Process Mobile Phones take two (2 nd Qtr 2002) Used Elert & Associates expertise again Industry standard platform Vendor accountability Deployed in phases Results Technology met expectations Short tuning period that lasted about 1 month Started with 100 phones, increased to 125

26 Fringe benefits! (b) Technology New wireless computer technologies Wireless remote-controlled cameras

27 Robo-Customer Ethernet enabled camera High gain antenna b Ethernet repeater UPS

28 Mobile employees

29 System Commonalities Symbol Access Points & phones Cisco network MitelVoIP Ardent Partners (local vendor/var) Elert & Associates

30 In-Building Wireless! Will wireless replace wired communications (completely)?! Can wireless ever reach wired throughput and security?! Will local codes require support for First Responders?

31 The Wireless Spectrum Infrared Light Narrowband Spread Spectrum Typically Line-of-site Short Range Connectivity In Room Application High Data Rate Potential Specific Frequencies Individual User License Low Data Rates Interference Resistance Secure License Free Use 3x10 6 m 3x10 5 m 30,000 m 3,000 m 300 m 30 m 3 m 30 cm 3 cm 0.3 cm 0.03 cm 3x10 5 A WAVELENGTH BAND DESIGNATIONS Very Low Frequency VLF LF MF HF VHF UHF SHF EHF INFRARED ACTIVITIES FREQUENCY Microwaves 100 Hz 1 khz 10 khz 100 khz 1 MHz 10 MHz 100 MHz 1 GHz 10 GHz 100 GHz 1 THz Hz Audible Range AM Broadcast FM Broadcast 902 MHz (ISM) 2.4 GHz (ISM) 5.8 GHz (ISM)

32 WLAN Planning Pitfalls! Access Point quantities & placement! Power availability! Channel capacity vs. system growth! Interference (known and unknown)! Data & Voice issues! Security concerns (802.1x)

33 WLAN Coverage WLAN Coverage st Ring 2nd Ring 3rd Ring a b

34 WLAN Interference Interference

35 Wi-Fi Planning Steps! Initial AP location selection! Test and redesign per signal strength! Test and redesign per signal strength! Create a coverage map! Assign frequencies to APs! Audit: APs,, frequency, location and coverage

36 Site Survey & AP Placement X 1 2 X 1 X

37 Cellular/PCS/Paging! 800, 900, 1900, 2100 MHz frequencies! AMPS, TDMA, CDMA and GSM! Exterior systems base stations! In-building access methods! System loading! Licensing and contractual issues! Enhanced 911

38 Public Safety Radio! VHF, UHF, 700, & 800 Bands! Police, Fire and other first responders! Regulations and codes! Building owner responsibilities

39 Building Design Issues! Shielding! Signal absorption! Multipath! Occupant safety! Site survey! Antenna locations/visibility

40 Future Considerations! Interference keeps increasing! Ever changing & improving Hardware vs. Software Defined Cognitive Control! Jurisdictional codes! Sensor technology

41 In-Building Wireless! Will wireless replace wired communications (completely)?! Can wireless ever reach wired throughput and security?! Will local codes require support for First Responders?

42 Questions??? Wendy Chretien E&A Frank Dolejsi BCA Mark Hoekstra Skyline Exhibits Dave Kaun E&A