4G wireless system

25
4G WIRELESS 4G WIRELESS TECHNOLOGY TECHNOLOGY PRESENTED BY: PRESENTED BY: MANPREET KAUR MANPREET KAUR 1148659 1148659

Transcript of 4G wireless system

Page 1: 4G wireless system

4G WIRELESS 4G WIRELESS TECHNOLOGYTECHNOLOGY4G WIRELESS 4G WIRELESS TECHNOLOGYTECHNOLOGY

PRESENTED BY:PRESENTED BY:

MANPREET KAURMANPREET KAUR

11486591148659

Page 2: 4G wireless system

INTRODUCTION TO WIRELESS

COMMUNICATION

• Our ultimate goal is to communicate with any type of information with anyone, at anytime, from anywhere. This is possible with the aid of WIRELESS TECHNOLOGY

Page 3: 4G wireless system

Evolution from 1G to 4G System

• 1G Wireless System: Developed in 1980’s and completed in early 1990’s.

• 2G Wireless System :The 2G phase began in 1990’s and much of this technology is still in use.

• 3G Wireless System : It was developed in the late 1990’s until present day, Japan is the first country to having introduced 3G nationally.

Page 4: 4G wireless system

FIRST GENERATION CELLULAR

COMMUNICATION (1G)• 1G was Analog system and was

developed in 1970’s.• 1G system enabled to make voice

calls in one country.• It was based on FDMA, Frequency

Division Multiple Access.

Page 5: 4G wireless system

DRAWBACKS OF 1G• Poor voice quality.• Poor battery life.• Large phone size.• Poor capacity and poor handoff

reliability.

Page 6: 4G wireless system

2G CELLULAR COMMUNICATION

• 2G system phones were developed in 1990’s.• The improved features in 2G were: 1. Transmission quality. 2. System capacity. It meet the demands of following: 3. Fax. 4. Short messages. 5. Data transmission going rapidly.• Data transmission was digital.

Page 7: 4G wireless system

DRAWBACKS OF 2G• Digital signals are weaker and

may not reach the cell tower.• Data dropouts in its way.• Range of sound conveyance is

less.• Data capabilities are limited.

Page 8: 4G wireless system

3G CELLULAR COMMUNICATION

Services include: 1. Mobile TV 2. Superior voice quality and video

conference. 3. Mobile Internet access and Video calls. 4. Transmission speed 125kbps to 2Mbps 5. Offers greater Security of data than 2G.

Page 9: 4G wireless system

ISSUES ON 3G WIRELESS SYSTEM

• Lack of coverage because it is still new service.

• People who have 3G mobiles can only enjoy its features with 3G subscribers only.

Page 10: 4G wireless system

4G WIRELESS SYSTEM

• 4G technologies are sometimes referred to as “MAGIC” which stands for Mobile multimedia, Anytime/any-where Global mobility support Integrated wireless and Customized personal service.

Page 11: 4G wireless system

WHAT’S NEW IN 4G?• High Transfer rate• Internet Access anywhere• Ability to move around with same

IP address• Utilization of smart Antenna• High resolution mobile TV

Page 12: 4G wireless system
Page 13: 4G wireless system
Page 14: 4G wireless system
Page 15: 4G wireless system

How 4G becomes faster?

• Wireless Technologies used in 4G: 1.OFDM (Orthogonal Frequency

Division Multiplexing) 2. UWB (Ultra Wideband) 3. IPv6.0

Page 16: 4G wireless system

What is OFDM?• OFDM stands for Orthogonal Frequency

Division Multiplexing. It transmits large amount of Digital Data over a Radio Wave.

HOW IT WORKS? It distributes the Data over a large number of

Carriers that are spaced apart at precise frequencies. This spacing provides the “orthogonality” in this technique which prevents the Demodulotors from seeing frequencies other than their own.

Page 17: 4G wireless system

ULTRAWIDE BAND• 4G can use any part of frequency

spectrum. Normally it uses a frequency of 3.1 to 10.6 Hz. This consumes less power since it transmits pulse instead of continuous signal.

Page 18: 4G wireless system

SMART ANTENNA• Smart Antenna can be employed to

find tune and turn up signal information. They can send signal back in the direction as they come from. Allow the same Radio frequency to be used by other user without worry of interferences.

Page 19: 4G wireless system

IPv6.0• IPv6 means Internet Protocol Version 6.• Each Computer on Internet has one

unique IP which regulates the Data transmission from one computer to another.

• It includes 128 bits, which is 4 times more than 32 bits IP address in IPv4.

Page 20: 4G wireless system
Page 21: 4G wireless system
Page 22: 4G wireless system

ADVANTAGES Support interactive Multimedia User friendliness High speed, high capacity and low

cost per bit Higher band widths.

Page 23: 4G wireless system

DISADVANTAGES• Battery uses is more• Hard to implement• Need complicated hardware

Page 24: 4G wireless system

CONCLUSION• 4G will be Convergence Platform

providing clear advantages in terms of Coverage, Bandwidth, Power Consumption, variety Services ranging from Pop-Up advertisements to Location-Based services and IP Data casting ones.

Page 25: 4G wireless system

THANKS FOR YOUR THANKS FOR YOUR ATTENTIONATTENTION

THANKS FOR YOUR THANKS FOR YOUR ATTENTIONATTENTION