3G VS WiFi ekta

8/3/2019 3G VS WiFi ekta

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By. :-Ekta Mishra

Regd No. :- 0701218142Branch :- ETE

7th semester 2010Purushottam Institute Of Engineering & Technology

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Introduction.

What is 3G ?

What is Wi-Fi ?

Similarity between 3G & Wi-Fi.

Difference between 3G & Wi-Fi.

Implications in Industry Structure & Public Policy.

Conclusion.

Discussion.

How 3G works.

How Wi-Fi works.



The 3G network is the third generation of mobilenetworking and telecommunications. It features awider range of services and advances networkcapacity over the previous 2G network. The 3G

network also increases the rate of informationtransfer known as spectral efficiency.

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Wireless networking technology that uses radiowaves to provide wireless high-speed Internet andnetwork connections. The Wi-Fi Alliance , theorganization that owns the Wi-Fi (registeredtrademark) term specifically defines Wi-Fi as any"wireless local area network”



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Based on the International Telecommunications Union standards,the 3G network is the third generation of mobile networking andtelecommunications.

A 3G network provides for download speeds of 14.4 megabits persecond and uploads speeds of 5.8 megabits per second. Theminimum speed for a stationary user is 2 megabits per second.

Japan and South Korea were the first countries to successfullylaunch this network. The Japanese company FOMA launched in May2001 and South Korea's SK Telecom launched in January 2002.

Delays on the roll-out process of the 3G network impacted the growthof mobile technology in many countries. This network uses a differentradio frequency than 2G, which forced many companies to build entirelynew infrastructure and obtain additional licenses.



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The name of a popular wireless networking technology that uses radio

waves to provide wireless high-speed Internet and network connections.The Wi-Fi Alliance, the organization that owns the Wi-Fi (registeredtrademark) term specifically defines Wi-Fi.

Wi-Fi works with no physical wired connection between sender andreceiver by using radio frequency (RF) technology, a frequency withinthe electromagnetic spectrum associated with radio wave propagation.

Any products that are tested and approved as "Wi-Fi Certified" (aregistered trademark) by the Wi-Fi Alliance are certified as interoperablewith each other, even if they are from different manufacturers.

A common misconception is that the term Wi-Fi is short for "wireless fidelity“however this is not the case. Wi-Fi is simply a trademarked term meaningIEEE 802.11x.



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The 3G network might be divided up in hierarchical fashion:

Macro cell - the area of largest coverage, e.g., an entire city. Micro cell - the area of intermediate coverage, e.g., a city centre. Pico cell - the area of smallest coverage, e.g., a "hot spot" in a hotel.

Why is there this sub-division of regions? It is because smallerregions (shorter ranges) allow higher user density and fastertransmission rates. This is why they are called "hot spots".







The wireless adapter of a computer translates data intoradio signals and transmits the signals over an antenna.The transmitting antenna is generally connected to aDSL (Digital Subscriber Line ) or a LAN-based Internetconnection.

The Wi-Fi signals have a range of about 120 feet indoorsand 300 feet outdoors. With an increase in the distancebetween the user and the signal, the connection speeddecreases. Wi-Fi connections allow you to get rid of the

clutter of wires.

The use of Wi-Fi technology for Internet access is onthe rise. Companies and households have begun optingfor wireless Internet access.





Current business models/deployment are different.

As noted above 3G represents an extension of the mobileservice provider model. This is the technology of choice forupgrading existing mobile telephone services to expandcapacity and add enhanced services.

In contrast, Wi-Fi comes out of the data communications industry(LANs) which is a by-product of the computer industry. The basicbusiness model is one of equipment makers who sell boxes toconsumers. The services provided by the equipment are free to theequipment owners.

Spectrum policy and management One of the key distinctions between 3G and Wi-Fi that we have only touched

upon lightly thus far is that 3G and other mobile technologies use licensed

spectrum, while Wi-Fi uses unlicensed shared spectrum. This has important

implications for (1) Cost of service; (2) Quality of Service (QoS) and

Congestion Management..



Implication in Industry Structure..1. Wi-Fi is good for competition

The success of WIFI wireless local access alterative is likely tobe good for local competition

If both 3G and Wi-Fi survive, then the diversity of visiblenetworking infrastructure strategies will be conductive to greater

facilities-based competition. Success of the Wi-Fi service model could help unlock the

substantial investment in private networking infrastructure thatcould be used as the basis for constructing an alternativeinfrastructure to the PSTN and cable wire line networks.

Wi-Fi service model survives, then we would expect this to beinherently more competitive because of the lower entry barriersfor setting up local property services.

Wi-Fi model depends on wore line infrastructure to connect to

the Internet Backbone.



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2. Wi-Fi and 3G can complement each other for amobile provider

Each of the technology has distinct advantagesover the other that would allow each to offerhigher quality services under disparate.

3G and Wi-Fi networks provides the opportunityto offer both near coverage with good voice

telephony support.



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4. Success of Wi-Fi is potentially good

for multimedia content..

Multimedia content benefits forhigher bandwidth services so theability to support higher speedwireless access may helpencourage the development of broadband multimedia content.



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5. Technical progress favorsheterogeneous future..

Technical progress in wireless

services favors a heterogeneouswireless future.

Once the world accepts the needto coordinate heterogeneous

technologies.





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Wise Geek-

http://www.wisegeek.com/what-is-a-3g-network.htm

Webopedia-

http://www.webopedia.com/TERM/W/Wi_Fi.htmlThree-g-

http://www.three-g.net/3g_technology.html

Wi-Fi planet-

http://www.wi-fiplanet.com/tutorials/article.php/1577551

Howstuffworks-

http://computer.howstuffworks.com/wireless-network.htm



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3G VS WiFi ekta

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