4g technology_presented by sushil kundu

7/28/2019 4G TECHNOLOGY_Presented by Sushil Kundu

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--- Forthcoming tech. in Wireless Communication

Presented By,

SUSHIL KUNDU

ROLL NO: 20084056

UNIVERSITY INSTITUTE OF TECHNOLOGY


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Introduction.

Generations.

Comparison Between 3G and 4G.

4G Characteristics. Mobile Services Before 4G.

4G-Technology.

Objectives and Uses.

SWOT Analysis.

Conclusion.


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Now-a-days the goal of many customers is to have PC

at ones palm . To support such powerful systems weneed long range, high speed wireless network called 4G.


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GenGGenerations


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COMPARISON BETWEEN 3G AND 4G:

Technology 3G 4G

Frequency band 1.8 - 2.5GHz 2 - 8GHz

Bandwidth 5-20MHz 5-20MHz

Data rate Up to 2Mbps 100Mbps moving,1GB stationary

Access W-CDMA VSF-OFCDM

VSFCDMA

FEC Turbo-codes Concatenated

Switching Circuit/Packet Packet


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Convergence Servicesseamless , high-reliable, quality

broadband communication ,ubiquitous-

connectivity.

Broadband Services---Low Cost.

---Wide Coverage Area.

---Wide Variety of Services Capability.


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LTE[Long Term Evolution]UMTS(universal mobile

telecomm. Systems)

Objectives : Improving Efficiency.

Lowering Costs.Improving Services.

Better integration with

other standards.

Aim of LTE : Download rate - 100mbpsUpload rate-50 mbps.


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WIMAX-[Worldwide Interoperability for Microwave Access]

Objective: Low Cost.

Low Expense Voice transport

and delivery of services.

Aim: Download data-rate 46 mbps.

Upload data-rate 14 mbps.


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Adaptive Modulation And Coding(AMC).

Adaptive Hybrid ARQ.

Multi In-Multi Out And Orthogonal Frequency-Division

Multiplexing(MIMO and OFDM).

Open Distributed AD-HOC Wireless Network.


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Flexible channel bandwidth5 MHz to 20 Mhz.

(up to 40 MHz)

Developing of 3G applications: MMS(multimedia messaging

services).

Video chat.Mobile T.V.

HDTV.


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STRENGTHS: Strong position of telecommunication vendors.

Faster data transmissions .

Higher bit-rate .

Larger bandwidth.Personalized multimedia communication tools.

WEAKNESS: No large user community .

Divergence between vendors and operators.No full internet -- limited speed ,bandwidth

Highest cost to use and on infrastructure.


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OPPORTUNITIES: Evolutionary approach.

Sophisticated commercialization would

encourage e-commerce and m-commerce.

Expected that consumers will replace

handsets with newer tech.

Desirable higher data capacity rates.

THREATS: Faster rate of growth and developments in other

region.

Since 3G is still in market ,it squeezes the market

competition in mobile industry.


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4G mobile phone technology promises faster communication

Speeds (100 megabits per second), capacity and diverse usage

formats. These formats would provide richer content andsupport for other public networks such as optical fibre and wireless

local area networks.


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Delivers true speeds without wires.

Faster -- more bandwidth.

Completely portable .

3 times faster than 3G .

4G is broadband technology that will give us richer ,pleasurable

internet experience.


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4g technology_presented by sushil kundu

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