100Mbps-1Gbps

INTRODUCTION

4G-4th Generation of mobile communication.

A descendant to 2G and 3G technology aiming

to provide the very high data transfer rates.

Best described in one word “MAGIC”.

MAGIC Mobile multimedia Anytime Anywhere

Global mobility support, integrated wireless

and personalized services.

Magic of 4G Technology:

3G utilized WiMax &WiFi as separate

wireless technologies

4G is expected to coalesce these two

technologies.

4G will be able to connect various high

speed networks together.

In 4G HD data will be made available

without much of a problem over the

internet.

History:

The 4G system was originally envisioned

by the Defense Advanced Research

Projects Agency (DARPA).

The DARPA selected the distributed

architecture and end-to-end Internet

protocol (IP), and in peer-to-peer

networking.

Commercial Deployment:

Two 4G candidate systems are commercially

deployed:

Mobile WiMax standard

Long Term Evolution (LTE) standard

Bharti Airtel launched India's first 4G service,

using TD-LTE technology, in Kolkata on April

10, 2012.

Why 4G over 3G?

4G (LTE) is quicker than 3G 

4G holds:

less buffering

better audio quality

improved gaming experience

streaming services with reduced lag.

Our 4G Plus network uses the 1800 & 2300 MHz

frequency bands

Our 3G Plus network uses the 900 & 2100 MHz

frequency bands

Components of 4G:

There are some components which makes the

successful 4G systems they are:

a) OFDMA

b) MIMO

c) IPv6.0

d) Spectral efficiency of 4G

e) SDR(Software Defined Radio)

f) Smart antennas

Components (contd..)

OFDMA: Orthogonal Frequency Division Multiple

Access.

It captures entire energy

Only few signals are affected or lost in OFDM while

compared to CDMA in 3G.

MIMO(Multi Input Multi Output):

improve the communication performance between sender

and receiver

range, quality of received signal and spectrum efficiency

are high.

Component (contd..)

IPv6.0:

Allows more address than IPv4.0

IPv6 each device have own IP address.

SDR(Software Defined Radio):

A SDR will allow increasing network

capacity at specific time.

Components(contd..)

Smart antenna

Switched Antenna: Based on the requirement

of the system ,signal is received at any given

time.

Adaptive Antenna: Steer the signal at any

direction of interest ,nullify the interfering signal.

Switched antenna Adaptive antenna

System Architecture:

Work flow:

UE

eNodeB

SGW(Service gateway)

MME(Mobility Management Entity)

PDN(Packet Data network)

3G Vs 4G

4G working:

Advantage of 4G:

Higher bandwidth 

Better response time. 10 times better then 3G

Works at 2.6GHz frequency

Less time to build 4G

It use the same tower and fiber cables as 3Gs -

they only have to upgrade the towers with 4G

components. 

Disadvantage of 4G:

New technology which makes it more

expansive than 3G

It is impossible to make our current

equipment to be compatible with 4G.

It is available in certain cities within

US.

Application:

4G future:

4G will bring a great revolution in mobile

communication.

The future of 4G is nothing but 5G.

Conclusion:

4G technologies was still at research stages

in many of the countries.

Companies like NTT Do Como Mobile and

Nortel Networks, and Nokia Siemens

Networks successfully demonstrated the

working of4G.

This technology will be deployed in the world

market soon.

4G can be quoted as:

“Every one, Anytime & Every Where”

BY,I.MADHUMITHAHT.AMUTHARINIII M.Sc(CS).,