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Facilitating a Wireless Culture: A Discussion of Applications and Challenges

Explore the applications and challenges of wireless technologies in today's society. Discuss the advantages of wireless mesh networks and other competing technologies. Dive into real-world case studies and learn about the planning phase for implementing wireless solutions.

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Facilitating a Wireless Culture: A Discussion of Applications and Challenges

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  1. Facilitating a Wireless Culture:A Discussion of Applications and Challenges MSIT 413: Wireless Technologies Party of Five Brandon Hoffman Kelly Koenig Azam Masood Phil Nwafor

  2. The Game Plan • Overview • Fulfilling a need • Solution fit • Applications • And the alternatives are? • Case Studies • Solution deep dive • Q & A

  3. Phil Nwafor Wireless, Airports, & Mesh

  4. Everywhere, Anywhere… • Wireless availability has become an afterthought

  5. Example: Airport • Business travelers = captive audience • This means a ready-made market • Since airports are municipally controlled, one party is awarded airspace via RFP process

  6. Infrastructure Challenges • Space shared by multiple parties • Building infrastructure: Walls, architecture, material components.

  7. Best Fit: Wireless Mesh Networks • Comprised of > 1 physical node with a bi-directional pathway between nodes. • Nodes can be gateways to the Internet • “Cloud” = Collection of several nodes

  8. Wireless Mesh Networks Advantages • Higher Network Coverage • Reliability and Robustness (Self-Heal) • Lower Infrastructure Costs Lower Deployment & Infrastructure cost due to reduction in # of access points as a result of Multihop structure!

  9. Expand, Expand, Expand • Due to modularity can increase capacity ceiling! (Scalability)

  10. ‘Self Healing’ • Fault diagnosis algorithm • Threat analysis leads to efficient algorithm design

  11. Generations 1st Generation = Pre-IEEE

  12. Azam Masood Competing Technologies

  13. Large Market Adaptation and Penetration Reasonable pricing WiFi • Non-Standard global spectrum assignments • Limited range • Complex security

  14. Greater Range than WiFi Almost 5x more throughput than WiFi WiMax • Newer Technology. Companies/Industry starting to give closer look • Higher capital cost (replace current hardware infrastructure)

  15. Larger Coverage area (Leverages 2.5G signal towers) EDGE • Low-throughput (384 kbps) • Higher capital cost (Infrastructure, Bay stations, antennas, hardware)

  16. Higher throughput (3.5 Mbps) Larger Coverage area (Leverages 3G signal towers) UMTS • Higher capital cost (Infrastructure, Bay stations, antennas, hardware)

  17. Largely ignored by industry despite > data rates Security HiperLAN • No compatible consumer products in market • Requires Line-of-sight

  18. Great for connected small personal devices (printers, mouse, etc) Bluetooth • Lower range and throughput as compared to WiFi

  19. Kelly Koenig Business Applications & Case Studies $ ? € 2 % 9

  20. Muncipal Projects: WiFi • Business models • Tax Funding • Provider Funding • Hybrid

  21. Municipal Projects: WiFi • Future goals and challenges

  22. Case Study: O’Hare Airport • Business Travelers • Airport Vendors • Airlines

  23. Case Study: Chicago CTA • WiFi Mesh Network • 10 Rail yards (Over 282 Railcars) • Real-Time Maintenance Information

  24. Case Study: Starbucks • Change in WiFi Provider • Updated business-model to drive customer traffic

  25. Brandon Hoffman Technical Solution

  26. Planning Phase • CRITICAL!

  27. Planning Aspects • Site Survey including noise floor and edge frequency devices • Propagation through building materials/people • Antenna placement and type due to noise, SNR, and propagation. • What exists behind the walls (if any)

  28. Autonomous Access Points • More than air interfaces • Function as complete network nodes

  29. LWAPP Access Points • aka Controller-based systems perform air interface functions • Split MAC functions with controller • Handled centrally by a wireless switch or controller

  30. LWAPP “Split MAC”

  31. Mesh Nodes (Refresher) • Dependent on each other to hop back to gateway nodes • Require a stable clean frequency for backhaul traffic.

  32. AWPP • Adaptive Wireless Path Protocol • Cisco’s new proprietary mesh protocol • Mixes LWAPP with AWPP

  33. Important notes • Mobility is more effective in controller-based systems • MIMO before MIMO for better mesh backhaul

  34. Wrap-up The business application, location, and environment will dictate the specific technology that should be used to effectively deploy the wireless data network

  35. Q & A QUESTIONS?

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