Transcript 1. Wireless System Presented By: S.Surya Prakash Reddy 2. 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 User Friendliness User Personalisation USER User Sensitivity 3. Types of wireless Communication Cellular Networks Wireless local area network User Friendliness User Personalisation USER User Sensitivity 4. Cellular Networks Evolved from mobile telephone as voice conversation and communication tools for private and business uses User Friendliness User Personalisation USER User Sensitivity 5. Wireless Local Area Network Emerged from computer network. It helps business user to expand their service areas by using LAN (faster data transport) User Friendliness User Personalisation USER User Sensitivity 6. Evolution from 1g to 4g system 1g Wireless System :Developed in 1980s and completed in early 1990’s 2g Wireless System :The 2G phase began in the 1990s and much of this technology is still in use. 3g Wireless System :It was developed in the late 1990s until present day,Japan is the first country having introduced 3G nationally User Friendliness User Personalisation USER User Sensitivity 7. 8. 3G WIRELESS SYSTEM Services include: Global roaming Superior voice quality and video conference Information for web surfing, music, news, corporate intranet, transportation service etc Transmission speeds from 125kbps to 2Mbps User Friendliness User Personalisation USER User Sensitivity 9. Issues on 3G wireless system High input fees for the 3G service licenses Inefficient to meet needs of future high-performance Multiple standards for 3G Require wider bandwidth Lack of coverage because it is still new service User Friendliness User Personalisation USER User Sensitivity 10. 4G wireless system 4G technologies are sometimes referred to by the acronym "MAGIC," which stands for Mobile multimedia, Anytime/any-where, Global mobility support, Integrated wireless and Customized personal service. User Friendliness User Personalisation USER User Sensitivity 11. Current Technology TDMA :Time Division Multiple Access, is a technique for dividing the time domain up into sub channels for use by multiple devices. CDMA :Code Division Multiple Access, allows every device in a cell to transmit over the entire bandwidth at all times. User Friendliness User Personalisation USER User Sensitivity 12. 4G Hardware Ultra Wide Band Networks : Ultra Wideband technology, or UWB, is an advanced transmission technology that can be used in the implementation of a 4G network. Smart Antennas : : Multiple “smart antennas” can be employed to help find, tune, and turn up signal information User Friendliness User Personalisation USER User Sensitivity 13. General 4G Services and 4G Applications Localized/Personalized Information Organizational services Communications ser

1. Presented By:
S Surya Prakash Reddy

2. Introduction to 4G wireless
communication
4G refers to the fourth generation of
cellular wireless standards. It is a
successor to 3G and 2G standards. The
nomenclature of the generations generally
refers to a change in the fundamental
nature of the service.
USER

3. Types of wireless Communication
• Cellular Networks
• Wireless local area network

4. Cellular Networks
Evolved from mobile telephone as voice
conversation and communication tools for
private and business uses

5. Wireless Local Area Network
Emerged from computer network. It helps
business user to expand their service
areas by using LAN (faster data transport)

6. Evolution from 1g to 4g system
• 1g Wireless System :Developed in 1980s
and completed in early 1990’s
• 2g Wireless System :The 2G phase
began in the 1990s and much of this
technology is still in use.
• 3g Wireless System :It was developed in
the late 1990s until present day,Japan is
the first country having introduced 3G
nationally

8. 3G WIRELESS SYSTEM
• Services include:
– Global roaming
– Superior voice quality and video conference
– Information for web surfing, music, news,
corporate intranet, transportation service etc
– Transmission speeds from 125kbps to 2Mbps

9. Issues on 3G wireless system
• High input fees for the 3G service licenses
• Inefficient to meet needs of future high-
performance
• Multiple standards for 3G
• Require wider bandwidth
• Lack of coverage because it is still new
service

10. 4G wireless system
4G technologies are sometimes referred
to by the acronym "MAGIC," which stands
for Mobile multimedia, Anytime/any-where,
Global mobility support, Integrated
wireless and Customized personal
service.

11. Current Technology
• TDMA :Time Division Multiple Access, is a
technique for dividing the time domain up
into sub channels for use by multiple
devices.
• CDMA :Code Division Multiple Access,
allows every device in a cell to transmit
over the entire bandwidth at all times.

12. 4G Hardware
• Ultra Wide Band Networks :Ultra
Wideband technology, or UWB, is an
advanced transmission technology that
can be used in the implementation of a 4G
network.
• Smart Antennas :: Multiple “smart
antennas” can be employed to help find,
tune, and turn up signal information

13. General 4G Services and 4G
Applications
• Localized/Personalized Information
• Organizational services
• Communications services and
applications
• Entertainment services
• Mobile commerce (M-Commerce )

14. Features of 4G Wireless Systems
• Support interactive multimedia
• User friendliness
• High speed, high capacity and low cost per
bit
• Higher band widths
• Terminal Heterogeneity
• Network Heterogeneity

15. User and Industry Expectations
• Wireless users can be categorized into
generalized segments :
– The Age segment
– The Internet Usage segment
– The Mobile Professional segment

16. Comparison between 3g and 4g
Major
Requirement 3g 4g
Speed 384 Kbps to 2 Mbps 20 to 100 Mbps
Frequency Band Dependent on country Higher frequency bands (
2-8 GHz)
Bandwidth 5-20 MHz 100 MHz (or more)
Switching Design Basis All digital with packetized
voice
Access Technologies
Circuit and Packet
W-CDMA OFDM and MC-CDMA

17. Conclusion
• 4G will be a Convergence Platform
providing clear advantages in terms of
Coverage, Bandwidth, Power
Consumption, variety of Services,
ranging from Pop-Up advertisements
to Location-Based services and IP
Data casting ones.