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SEMINAR ON. WIRELESS INTERNET ACCESS. Wi-Fi. VS. CONTENT. INTRODUCTION TO 3G AND Wi-Fi HOW BOTH ARE SAME ? HOW DO BOTH DIFFERS FROM ONE ANOTHER ? ADVANTAGES OF 3G & Wi-Fi OVER ONE OTHER IMPLICATIONS OF 3G & Wi-Fi IN INDUSTRIES & PUBLIC POLICY CONCLUSION REFERENCES.
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SEMINAR ON WIRELESS INTERNET ACCESS Wi-Fi VS www.123seminarsonly.com
CONTENT • INTRODUCTION TO 3G AND Wi-Fi • HOW BOTH ARE SAME ? • HOW DO BOTH DIFFERS FROM ONE ANOTHER ? • ADVANTAGES OF 3G & Wi-Fi OVER ONE OTHER • IMPLICATIONS OF 3G & Wi-Fi IN INDUSTRIES & PUBLIC POLICY • CONCLUSION • REFERENCES www.123seminarsonly.com
INTRODUCTION TO 3G • 3G was launched commercially by “NTT DoCoMo” in Japan branded FOMA in October 2001. • 3G Defines the collection of “Third Generation” cellular technologies which are designed to allow mobile cellular operators to offer integrated data & voice services over cellular networks. • 3G is meant for mobile service providers (M.S.P’s) only. • M.S.P generally use a licensed spectrum to provide network coverage. www.123seminarsonly.com
To support 3G, service mobile operators maintain a network of interconnected & overlapping mobile base stations. • Each “Base Station” may support user’s up to several kilometer's. • Upgraded 3G networks can support data rates from 384kbps to 2mbps. www.123seminarsonly.com
ASIA & PACIFIC(40%) WESTERN EUROPE(19%) EASTERN EUROPE(9%) AFRICA(7%) LATIN AMERICA(10%) U.S. & CANADA(10%) MIDDLE EAST(5%) www.123seminarsonly.com
3G NETWORK ARCHITECTURE MODEL www.123seminarsonly.com
INTRODUCTION TO Wi-Fi • Wi-Fi stands for “Wireless Fidelity”. • It is the popular name for wireless Ethernet 802.11b standards for WLANS. • Wi-Fi allows collection of PC’s, peripherals ( printers, access servers etc. ) to share sources. • It generally operates using unlicensed spectrum 2.4GHz band and the current one supports data rates up to 11mbps. www.123seminarsonly.com
Base stations equipments are owned & operated by end-user communities. • Though each base stations covers small range, it is possible to provide contiguous coverage over wide areas by using multiple base stations. • Wi-Fi provides “Hotspots” for airport, universities, net cafes etc. • Whereas now-a-days there is a growing movement of so called “Free Nets” where individuals and organizations are being provided with open access to subsidized Wi-Fi network. www.123seminarsonly.com
Wi-Fi COVERAGE www.123seminarsonly.com
3G & Wi-Fi : SIMILARITIES • Both are wireless technology. • Both facilitates mobility. • Both are accesstechnologies. • Both offers broadband data services. • Both supports “always on” connectivity 3G Wi-Fi www.123seminarsonly.com
HOW BOTH ARE DIFFERENT ? www.123seminarsonly.com
ADVANTAGE OF 3G OVER Wi-Fi • It provides a larger coverage area as compared to Wi-Fi. • 3G provides more safe and secured communication than Wi-Fi. • 3G provides un-interfered service from spectrums of other networks. • While traveling from place to place 3G becomes more acceptable than Wi-Fi. www.123seminarsonly.com
ADVANTAGES OF Wi-Fi OVER 3G • Wi-Fi is cheaper in comparison to 3G technology. • It provides much faster speed as compared to 3G. • It is widespread and more commonly used than 3G. www.123seminarsonly.com
IMPLICATIONS FOR INDUSTRIES & PUBLIC POLICY Wi-Fi can be a good competition. The success of Wi-Fi wireless local access alternative is likely to be good for local competition. If both 3G and Wi-Fi survive, then the diversity of visible networking infrastructure strategies will be conductive to greater facilities-based competition. Wi-Fi model depends on wore line infrastructure to connect to the Internet Backbone www.123seminarsonly.com
B) Wi-Fi & 3G can compliment each other. Each of the technology has distinct advantages over the other that would allow each to offer higher quality services under disparate. 3G and Wi-Fi networks provides the opportunity to offer both near coverage with good voice telephony support. www.123seminarsonly.com
C) Spectrum policy is a key. One of the key distinguishing features between 3G and Wi-Fi is the use of licensed verses unlicensed spectrum. 3G secondary markets would allow more flexible management of property rights. Wi-Fi the emergence of spectrum markets may make it possible adopt a suitable mechanism for addressing congestion issues. www.123seminarsonly.com
D) Technical progress favors heterogeneous future. Technical progress in wireless services favors a heterogeneous wireless future once the world accepts the need to coordinate heterogeneous technologies. www.123seminarsonly.com
CONCLUSION This article offers a qualitative comparison of two wireless technologies that can be viewed simultaneously as substitute and / or complimentary paths for evolving to broad band wireless access. The two technologies are 3G , which is the preferred upgrade path for mobile providers , and Wi-Fi , one of the many WLAN technologies. The goal of the analysis is to explore two divergent world views for the future of wireless access and to speculate on the likely success and possible interactions between the two technologies in the future. www.123seminarsonly.com
REFERENCES • Carros, D. (2001). Mobile carriers: No single standard in sight. Tech Update ZDNet • Dornan, A. (2002). The essential guide to wireless communication applications: From mobile systems to Wi-Fi (2nd edition) Upper Saddle River, NJ: Prentice-Hall PTR. • Martin, M. (2002). Verizon wireless gets closer to 3G. Network World. • www.hhs.se/cic/emarkets/dockofthebay/BThNYC2002.pdf • http://itc.mit.edu • http://www.dsv.su.se/Bmab/Alven.pdf • http://www.broadbandweek.com/news/020121/020121 wireless wifi.htmor www.123seminarsonly.com
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