Prepared by :Syed Fatehyab Ahmed

Roll no:201107002

3G & 4G TECHNOLOGY

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Outline• What is 3G & 4G TECHNOLOGIES? • Evolution Wireless System• Difference between 3G & 4G • Features And Advantages of 3G &

4G TECHNOLOGIES• Disadvantages of 3G & 4G

TECHNOLOGIES• Application of 3G & 4G

TECHNOLOGIES

What is 3G TECHNOLOGY?

• A generation of wireless technology that transmits wireless data up to 2 megabits per second and makes integration of

• VOICE• DATA• VIDEO

What is 4G TECHNOLOGY?

• 4G is the term used to refer to the next wave of high-speed mobile technologies that will be used to replace current 3G networks. The two top contenders are LTE and WiMAX, both of which are IP based networks that are built from similar, yet incompatible, technologies. Sprint and Clear wire are currently offering 4G WiMAX service in the USA, while Verizon and AT&T have committed to the use of LTE and are trialing their own 4G networks.

• Also known as: "fourth generation"

Evolution Wireless System• Wireless mobile communications systems are

uniquely identified by "generation designations. Introduced in the early 1980s, first generation (1G) systems were marked by analog frequency modulation and used primarily for voice communications.

• Second generation (2G) wireless communications systems, which made their appearance in the late 1980s, were also used mainly for voice transmission and reception The wireless system in widespread use today goes by the name of in 2.5G-an " between " service that serves as a stepping stone to 3G. Whereby 2G communications is generally associated with Global System for Mobile (GSM) service, 2.5G is usually identified as being "fueled " by General Packet Radio Services (GPRS) along with GSM

Continued

• . In 3G systems, making their appearance in late 2002 and in 2003, are designed for voice and paging services, as well as interactive media use such as teleconferencing, Internet access, and other services. The problem with 3G wireless systems is bandwidth-these systems provide only WAN coverage ranging from 144 kbps (for vehicle mobility applications) to 2 Mbps (for indoor static applications). Segue to 4G, the "next dimension " of wireless communication.

• The 4G wireless uses Orthogonal Frequency Division Multiplexing (OFDM), Ultra Wide Radio Band (UWB), and Millimeter wireless and smart antenna. Data rate of 20mbps is employed. Mobile speed will be up to 200km/hr. Frequency band is 2 - 8 GHz. it gives the �ability for world wide roaming to access cell anywhere.

Difference between 3G & 4G

• 3G--solid on phone calls and text and email, but really not fast or efficient at all when it comes to audio or video on the internet. The internet speeds are only slightly better than old-school dial-up modems usually, but can go up to near-DSL levels.

• 4G--Way faster and more efficient when it comes to audio and video streaming. Also eats up way too much battery life, way too much data limits, it isn't as secure as previous gens and tends to flake out in terms of _phone service_ unless you have perfect signal bars. Even so, the internet speed on 4G can beat DSL sometimes.

3G VS 4G

Features And Advantages of 3G TECHNOLOGY

• The presence of a wide radio bandwidth means that users are able to experience faster data transmission speeds and issues pertaining to overcrowding are minimized.

• One of a kind multimedia experience. This means that more people are able to easily access music, pictures and videos with ease as well as share them. Improved messaging and Bluetooth capabilities are able to support this unlike in 2G devices.

• Business, entertainment and socializing have all been escalated to a new level. With ample video conferencing support meetings can be held without having to be in the same geographical location. Various entertainment spots and gadgets can be accessed via 3G internet for an unforgettable experience!

• It is now possible to operate more cell phones within a network than ever before. Consequently, users are able to access a variety of services within a network.

Features And Advantages of 4G TECHNOLOGY

Support for multimedia services like teleconferencing and wireless internet.

Wider bandwidths and higher bit rates. Entirely packet-switched network. Global mobility and service portability. Support for previous wireless technologies. High internet speed. tight network security. Better response time. 10 times better than 3G Less time to build 4G because it uses the same tower and fiber

cable as 3G- they only have to upgrade the tower with 4G Provide high flexibility as compared to already existing

technologies

Disadvantages of 3G TECHNOLOGY

•High Prices to help cover the initial demand and fixed cost. • Needs more towers the high density requires towers to be closer together. •Availability to consumers.• One of the biggest disadvantages is that is would be a big risk for entrepreneurs to take because the cost are high, and the start slow.

Disadvantages of 4G TECHNOLOGY

• New technology which make is more expensive than 3G

• Better usage is more • Need complicated hardware • Not compatible with already

existing 2G and 2.5 G handset.

Application of 3G TECHNOLOGY

• Video Surveillance Monitoring using 3G Network.• Video Conferencing from anywhere using 3G

Network.• Making Remote Access Network Connectivity for

small branches/ temporary locations simple and easy using 3G Network.

• Enabling (Partial) Access to critical enterprise applications like ERP, CRM, Business Intelligence on your Mobile Phone Using 3G Network.

• Reduce Long Distance Voice Call Charges using VOIP Communications and 3G Network.

• 3G Network as the back-up (or) even primary Internet access method for SMB companies.

Application of 4G TECHNOLOGY

• 4G Car :With the hype of 3G wireless in the rear view mirror, but the reality of truly mobile broadband data seemingly too far in the future to be visible yet on the information super highway, it may seem premature to offer a test drive 4G. But the good news is, 4G is finally coming to a showroom near you

• public safety.• Sensors in public vehicle.• Cameras in traffic light .• First responder route selection.• Traffic control during disasters. 

Conclusion

• As the history of mobile communications shows, attempts have been made to reduce a number of technologies to a single global standard.

• 4G seems to be a very promising generation of wireless communication that will change the people’s life in the wireless world.

• 4G is expected to be launched by 2010 and the world is looking forward to the most intelligent technology that would connect the entire globe.