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WIRELESS INTERNET ACCESS 3G VS Wifi PowerPoint Presentation

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Slide 1 - WIRELESS INTERNET ACCESS: 3G VS Wifi -H.ARUN KUMAR -J.SRIKANTH
Slide 2 - Introduction The two most important phenomena impacting telecommunications over the past decade-the internet and mobile telephone services. The internet brought the benefits of data communications to the masses with email, the web, and ecommerce. mobile service has enabled “follow-me anywhere/always on” telephony. To realize the full potential of this convergence, however, we need broadband access connections.
Slide 3 - SOME BACKGROUND ON WiFi AND 3G 3G: 3G is a technology for mobile service providers. To support the service, mobile operators maintain a network of interconnected and overlapping mobile base stations that hand-off customers as those customers move among adjacent cells. service providers will have to upgrade their networks to one of the 3G technologies which can support data rates of from 384Kbps up to 2Mbps
Slide 4 - 3G
Slide 5 - WiFi WiFi is the popular name for the wireless Ethernet 802.11b standard for WLANs. Operate using unlicensed spectrum in the 2.4 GHz band. The current generation of WLANs supports upto 11Mbps, data rates within 300 feet of the base station. WLAN technology was not designed to support high-speed hand – off associated with users moving between base station coverage areas.
Slide 6 - WiFi
Slide 7 - HOW ARE WiFi AND 3G SAME? BOTH ARE WIRELESS Avoids need to install cable drops to each device when compared to wire line alternatives. Facilities mobility. BOTH ARE ACCESS TECHNOLOGIES Both 3G and WiFi are access or edge/network technologies. Wireless service are part of an end-to-end value chain that includes , in its coarsest delineation atleast The internet backbone ( the cloud ) The second mile network providers (ILEC ,mobile , cable, or a NextGen carrier)
Slide 8 - HOW ARE WiFi AND 3G SAME? BOTH OFFER BROADBAND DATA SERVICE Both 3G and WiFi support broadband data service, although the data rate offered by WiFi ( 11Mbps ) is substantially higher than the couple of hundred Kbps expected from 3G services. Both services will also support “always on “ connectivity which is another very important aspect of broadband service .
Slide 9 - HOW ARE THEY DIFFERENT? A.CURRENT BUSINESS MODELS 3G represents an extension of the mobile service provider model. The basic business model is the telecommunication services model . WiFi comes out of the data communications industry ( LANs) which is a bi-product of the computer industry. The basic business model is one of equipment makers who sell boxes to customers. 3G WiFi WiFi
Slide 10 - HOW ARE THEY DIFFERENT? B.SPECTRUM POLICY AND MANAGEMENT. 3G and other mobile technologies use licensed spectrum. the licensee is protected from interference from other service providers. WiFi uses unlicensed shared spectrum. Any member can access this service provided the administrator has given permission to do so. 3G WiFi
Slide 11 - HOW ARE THEY DIFFERENT? C. STATUS OF TECHNOLOGY DEVELOPMENT 3G licenses have been awarded in a number of markets at a cost of billions of dollars to the licensees, it has only limited progress with respect to service deployment We have a large installed base of WiFi networking equipment that is growing rapidly. 3G(deployement status) WiFi(deployement status)
Slide 12 - HOW ARE THEY DIFFERENT? C. STATUS OF TECHNOLOGY DEVELOPMENT 3G was expressly designed as an upgrade technology for wireless voice telephony networks. 3G offers better support for secure / private communications WiFi provides a lower layer data communication service that can be used as the substrate on which to layer services such as voice telephony. WiFi offers security only to a local level unlike 3G. 3G(Embedded Support for Services) WiFi(Embedded Support for Services)
Slide 13 - HOW ARE THEY DIFFERENT? C. STATUS OF TECHNOLOGY DEVELOPMENT Formal standards picture for 3G is perhaps more clear. Relatively a small family of internationally sanctioned standards, collectively referred to as WCDMA. It may appear that the standards picture for WLANs is less clear than for 3G. WiFi is one of the families of continuously evolving 802.11 x wireless Ethernet standards. 3G(STANDARDIZATION) WiFi(STANDARDIZATION)
Slide 14 - HOW ARE THEY DIFFERENT? C. STATUS OF TECHNOLOGY DEVELOPMENT 3G is more developed than WiFi as a business and service model. Represents an extension of the existing service provider industry to new services, and as such, does not represent a radical departure from underlying industry structure. It is ofcourse in contrast to the 3G in terms of business and service model. WiFi is more developed with respect to the upstream supplier markets, atleast with respect to WLAN equipment. 3G(SERVICE/BUSINESS MODEL) WiFi(SERVICE/BUSINESS MODEL)
Slide 15 - 3G Vs WiFi
Slide 16 - Conclusion This article offers a qualitative comparision of two wireless technologies that can be viewed simultaneously as substitute and / or complimentary paths for evolving to broad band wireless access. 3G-the preferred upgrade path for mobile providers. WiFi -one of the many WLAN technologies. Both technologies are likely to succeed in the market place. we expect 3G mobile providers to integrate WiFi technology into their networks thus expecting these two technologies to be complimentary in their successful mass market deployment.
Slide 17 - -------- ---Arun & Srikanth.
 

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