Creating a Wireless VRS Network Successful Methods and Practices INF 2062

More about me: Clint W. Hopper Client Services Manager Bachelor of Science in Information Systems Rogers, Arkansas

About Our Network Covers 3,205 square miles (so far) 6.1% of Arkansas Started March 2008 Completed August 2008

How we went about … Selecting a Technology Selecting a Vendor Selecting a Device Implementation and Installation Caveats – Pushing the Limits Results Questions

Selecting a Technology Wireless Coverage Research and Planning Technology Bandwidth Availability

Wireless Coverage Research Online Maps http://www.trimble.com/mgis_wireless_phone_carrier.aspx Radio Frequency (RF) maps Request area tower locations or use web http://www.cellreception.com/towers/ Create your own map resources Know your variables Respect the limits Air Density Terrain Surrounding woodland

Wireless Coverage Planning DeLorme XMap Using Tower Information Utilize 3D Topography Profiles Distance

Technology Bandwidth / MTU Type Protocol Overhead BPS/SV BPS / SVs 4 5 6 7 8 9 10 11 12 13 14 CMR 40 19.3403 117.36 136.7 156.04 175.38 194.72 214.06 233.4 252.74 272.08 291.42 310.76 CMR+ 19.287 117.15 136.44 155.72 175.01 194.3 213.58 232.87 252.16 271.44 290.73 310.02 RTCM2.3 52.659 250.64 303.3 355.95 408.61 461.27 513.93 566.59 619.25 671.91 724.57 777.23 RT27 43.81146 215.25 259.06 302.87 346.68 390.49 434.3 478.11 521.93 565.74 609.55 653.36 Ask Test Push Data 40B + (SVs * BPS/SV) e.g. 40B + (12 * 43.81146) = 565.74B

Technology Availability Wireless FCC mandated Good chance of single provider DSL Unlikely to have single service provider More likely in rural areas Cable More likely in urban areas

Selecting a Technology Selecting a Vendor Selecting a Device Implementation and Installation Caveats – Pushing the Limits Results Questions

Selecting a Vendor Personal Connection Connecting with your vendor Good working relationship Interested in your success Ability to understand needs Your implementation goal Your timeline Asks questions about your goals Shows interest Helps you remember your goals

Selecting a Vendor Response Provider Maps Local Tower Locations Online Maps Radio Frequency (RF) Maps Local Tower Locations Planned Towers FCC Licensed Tower Search http://www.cellreception.com/towers/

Selecting a Vendor Team Resources Knowledge Results 24/7 Support Personal Meetings Knowledge Understand the Problem Work on solutions or replacements Results Solutions Timeliness

Selecting a Technology Selecting a Vendor Selecting a Device Implementation and Installation Caveats – Pushing the Limits Results Questions

Selecting a Device Provider Support Hardware Vendor Support Does the provider sell/support the device? Hardware Vendor Support Can you directly access the hardware vendor? Software/Firmware Support Can you download and install updates regularly? Reception Support Does the provider allow you access to Wireless Engineers?

Selecting a Device Updates to communications hardware Firmware goes out of date RF tuning Remote Management Check vitals Check on temperatures Remote monitoring SNMP availability Directional support or Dual Antenna capability

Selecting a Technology Selecting a Vendor Selecting a Device Implementation and Installation Caveats – Pushing the Limits Results Questions

Implementation & Installation Timeline How long do you have to perform? Weather Conditions Air density during seasons Heat conditions Weather Patterns Seasonal issues Line of Sight Can you see the cell service tower? Tools Have you prepared the station site for the equipment?

Selecting a Technology Selecting a Vendor Selecting a Device Implementation and Installation Caveats – Pushing the Limits Results Questions

Caveats – Pushing the Limits Wireless Noise and Signal Alpha, Beta, Gamma Sectors Maximum Transmission Unit (MTU) The greatest amount of data or "packet" size that can be transferred in one physical frame on a network. This packet also contains the header and trailer information, which are like addresses for each packet that are required by the routers on the network. http://www.intellexdesigns.com/_services/glossary.htm

Caveats – Pushing the Limits Maintenance Updating Preferred Roaming List (PRL) Modem Status & Firmware Site Wireless Technology Different MTU / Technology 1xRTT One Times Radio Transmission Technology (CDMA 2000) 50Kbps - 100Kbps Upload and Download, bursts to 144Kbps.

Site Wireless Technology (cont’d) EVDO Rev. 0 Evolution Data Optimized 400kbps-700kbps Download, bursts up to 2.0Mbps, 50kbps-100kbps Upload Speed, bursts to 144Kbps. EVDO Rev. A 500Kbps-1,000Kbps Download, bursts to 3.0Mbps, 300Kbps-400Kbps Upload Speed, bursts to 1.8Mbps.

Selecting a Technology Selecting a Vendor Selecting a Device Implementation and Installation Caveats – Pushing the Limits Results Questions

Results

Results

Results

Results

Questions Please ask questions.