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Hi Everyone. Presentation of Project Report By: Subroto Mukherjee Udayan C. Patwardhan CVN students. Study Report on Fixed Wireless Broadband Access. Report is divided in to following sections: Abstract. Introduction. Motivation Results for the Tests conducted in 90s MMDS. LMDS.

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Hi Everyone

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  1. Hi Everyone Presentation of Project Report By: Subroto Mukherjee Udayan C. Patwardhan CVN students

  2. Study Report on Fixed Wireless Broadband Access • Report is divided in to following sections: • Abstract. • Introduction. • Motivation • Results for the Tests conducted in 90s • MMDS. • LMDS. • WLL.

  3. Focus on important Fixed Wireless Technology such as : • Local multipoint distribution system (LMDS). • Multichannel Multipoint distribution system (MMDS) . • Wireless Local Loop (WLL) .

  4. Sections Covered for LMDS,MMDS,WLL • Definition • Overview • Architecture • Operation Principle and System Capacity • Standards discussion (if any) • Antenna and Propagation issues • Field Trials • Applications

  5. Final discussion • Fixed Mobile Convergence • Future Work • Conclusion • References.

  6. A brief view of the Report • Need of Bandwidth? • Competition, convergence and Internet and data networking • “ Last mile keyword”-need in local loop • As dedicated broadband links are quite expensive, so an alternative solution for the local loop, providing a high bandwidth at low cost is badly needed.

  7. Broadband Technologies • Enhanced copper, including xDSL and ISDN. • Fiber optics • Cable networks, which are typically hybrid fiber- coax. • Fixed terrestrial wireless systems such as MMDS, LMDS and WLL. • Mobile terrestrial wireless such as the new 3G platforms • Satellite broadband networks including DBS and VSAT

  8. LMDS • Local multipoint distribution system (LMDS) is the broadband wireless technology used to deliver voice, data, Internet, and video services in the 25-GHz and higher spectrum (depending on licensing).

  9. MMDS • Multichannel Multipoint distribution system (MMDS) is the broadband wireless technology used to deliver voice, data, Internet, and video services in the 2.5-GHz band.

  10. WLL • Wireless Local Loop (WLL) sometimes also called radio in the loop (RITL) or fixed-radio access (FRA), is a system that connects subscribers to the public switched telephone network (PSTN) using radio signals as a substitute for copper for all or part of the connection between the subscriber and the switch • These are bands, most commonly at 3.5 GHz and 10.5 GHz, that were originally intended for voice services but could have other uses, as well.

  11. Limitations • The requirement of Line-Of-Sight for these technologies could pose a problem in installing such systems in urban area like New York City. Possible Solutions for improvement • Evolution of non-line of sight devices and design based on such systems.

  12. Fixed Mobile Convergence • A convergence strategy for fixed and mobile services via a standards-based Intelligent network platform could be in right direction.

  13. Conclusion • Broadband in local loop could be effective solution for service providers and operators to provide voice, data, Internet and video services. It could potentially open up the last mile for new opportunities to provide broadband services to end user without using the existing copper.

  14. Thanks ! • We would like to thank Prof. Andrew Campbell for all the informative lectures on “Untangling the Wireless Web” • Also we would like to thank Jaekwon Oh for his assistance. • Also we would like to thank Verizon co-workers who provided us with the study papers of Verizon.

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