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Wireless Network

Brittany Quinn November 20, 2009. Wireless Network. WPAN Network – Bluetooth. Data Rate – 1 Mbps to 3 Mbps Range - Depend on the class of the radio Class 3 = 3 feet Class 2 = 30 feet Class 1 = 300 feet Power –Small Power Ranges – 2.5mW. WPAN Network – Bluetooth (cont.). Uses –

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Wireless Network

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  1. Brittany Quinn November 20, 2009 Wireless Network

  2. WPAN Network – Bluetooth • Data Rate – 1 Mbps to 3 Mbps • Range - Depend on the class of the radio • Class 3 = 3 feet • Class 2 = 30 feet • Class 1 = 300 feet • Power –Small Power Ranges – 2.5mW

  3. WPAN Network – Bluetooth (cont.) • Uses – • Mobile Phones • Computers/Printers • Scanners – Bar code • Wacky Ideas – • Invisible Earpiece • Shoe GPS • Sole wear reader • Headset/hearing aid • Cost – • $0.89 - $3500 • Vendors –

  4. WPAN Network – Bluetooth (cont.) • Issues – • Frequency hopping spread spectrum (FHSS) spans the whole frequency band which leads to potential interference but the low power can help manage it • Supporting Technology – • Current Standard – IEEE802.15.3: Data Rates of 20 Mbps • Coming Innovations – • Faster Data sending – Larger file sending with less energy using V3 technology

  5. WLAN Network – Wi-Fi • Wireless Fidelity • Data Rates – • 54Mbps Average • With New 802.11n – 300Mbps with 150 Mbps throughput • Range - • Effective Rage – 100 feet, but even then not always 100% effective • Power – • Battery life changes with use but can range from months to years

  6. WLAN Network – Wi-Fi (cont.) • Uses – • Wi-Fi Only iPod Touch • Laptops • Phones • GPS • Data Sharing • Businesses • Cost – • Usage • $2.00 for 30 minutes and $.07 for each additional minute • $6.95 for a 24-hour period • $15.95 for 1,800 minutes • $22.95 for unlimited minutes for a month • Network – (Depends on Size) – Near $170000 • Service Vendors –

  7. WLAN Network – Wi-Fi (cont.) • Supporting Technology – • Technology currently available - 802.11n (Newest) • Coverage Network and Modems for Hotspots • Issues/Limitations – • Constant Roaming for a Signal when in Motion • Security • Only Coverage near Hotspots

  8. WLAN Network – Wi-Fi (cont.) • Coming Innovations – Eight Changes coming (3-5 yrs) with 11n • Broader Broadband • Tougher Radio Frequency Signals • Wi-Fi-zation of Things • Improved Security • Cooperation with non-Wi-Fi Networks • Self Managing Wi-Fi • Increased Mobility with smarter RF Management • Personal Wi-Fi Area

  9. WWAN/WMAN Network – Wi-Fi Mesh • Evolved from WLAN Networks • Data Rate – Determined by User • Range – Depends on the Number Nodes • 30-40 mesh nodes per square mile • Coverage – • Within a City • Indoor – 70% Coverage • Outdoor – 90% Coverage • Power – • Same as Wi-Fi • Taken from such things as light poles and traffic signals • Uses – • Connect Local Emergency Services and Law Enforcement • Locations where LAN installation is not practical • Olympics

  10. WWAN/WMAN Network – Wi-Fi Mesh(cont.) • Cost – Excluding Installation • A node costs $1000 or more – • Meraki - $100 per node (limited options) • Supporting Technology – • IEEE802.11 b/g for interfaces • IEEE802.11a to help control bandwidth • Issues – • Lots of Traffic • Difficult to Install • Vendors – • Tropos, BelAir, Strix, Cisco, Motorola, and Meraki (Low-Cost vendor) • Coming Innovations - • Wider Installation • Larger Data • Simpler Instillation

  11. WWAN/WMAN Network – WiMAX • Worldwide Interoperability for Microwave Access • Developed in response to desire to create wireless TV • Data Rate – 10 Mbps • Range – 3 miles • Uses • Providing data and telecommunications services • Portable Connection Anywhere • Supporting Technology – • IEEE 802.16d – Fixed Wireless • IEEE 802.16e – Fixed and Mobile Wireless • Issues/Limitations – • Shared Bandwidth – Deteriorating Performance • Limited Range without additional instillation costs • Costs • Plan - $29.99 • Station - $150000 • Vendors – • Motorola, Alvarion, Navini, RAD, Cisco • Coming Innovations – • Mobile WiMAX – Faster, More efficient

  12. Examples of Wireless Networks in Industry • Vehicle Motion and Path Planning • Diafuku and Shinko • Wireless Tooling • Hospitals • http://www.youtube.com/watch?v=PyrnE0K02B0

  13. Summary • WPAN – Bluetooth • Smaller Scale Connection Based on Master and Slave System • Benefits – Cheap, Uses little power • Downside – Slower, Small Data Rate • WLAN – Wi-Fi • Larger Network Based on Point to Point Connections • Benefits – Cheap Coverage, Larger Coverage, Moderate Data Rate • Downside – Unsecure, Jumps from Networks • WMAN/WWAN – Wi-Fi Mesh, WiMAX • Wider Networks Based on a Tower System • Benefits – Large Coverage, Coverage Not Expensive, Large Data Rate • Downside – Tower Installation is Expensive

  14. References • Wireless Network Industrial Report – www.wireless-nets.com • http://www.bluetooth.com/Bluetooth/Experience/On_The_Cutting_Edge.htm • http://compnetworking.about.com/cs/wireless80211/g/bldef_wifi.htm • http://www.webbeams.com/rates.html • http://www.networkworld.com/news/2009/111209-wifi-change.html • http://erc.engin.umich.edu/news/NPWF/SiemensPanel2009.pdf • http://www.wi-fiplanet.com/tutorials/article.php/3520231 • http://en.wikipedia.org/wiki/WiMAX • Interview: Timothy Quinn

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