1. 4G -WIRELESS TECHNOLOGY
4G -WIRELESS TECHNOLOGY

2. Contents
 Introduction
 Evolution of Processors and DSP Technology for 4G
 Beyond 3G
 Why 4G ?
 Principle Technologies
 Features of the 4G systems
 ITU’s Vision of IMT
 4G Architecture
 4G Networks
 Difference between 3G and 4G
 Advantages & Disadvantage
 Future Outlook
 Conclusion
 Bibliography

3. Introduction
Definition :
 According to the Wireless World Research Forum
(WWRF),4G is a combination of wired and
wireless networks in computer, consumer
electronics and communication technology systems
based on the internet technology that can merge
applications like the Wi-Fi and Wi-MAX capable of
transmitting at a speed ranging from 100 Mbps(in
cell-phone networks) to 1Gbps(in local Wi-Fi
networks). It is also known as “beyond 3G,"

4. Evolution of 4G Technology

5. Beyond 3G
 Affordable broadband communication
everywhere and on the move.
 All-IP network for all applications –
voice, messaging and multimedia.

6. Beyond 3G

7. Why 4G ?
 Business Need and Opportunity
 Technology Pull
 Rate of Innovation
 Disruptive Technologies
 Standardization
 New Revenue Opportunities
 Validation of Radio Technologies
 Cost and Availability of Spectrum
 Ecosystem Development

8. Principle Technologies
 OFDM : To exploit the frequency selective
channel property.
 MIMO : To attain ultra high spectral
efficiency.
 UMTS : Universal Mobile Telecommunication
System.
 SMART ANTENNAS , SDR
 Adaptive radio interface
 Modulation, spatial processing including multi-
antenna and multi-user MIMO

9. Features of the 4G system
 Support interactive multimedia, voice, video,
wireless internet and other broadband services.
 High speed, high capacity and low cost per bit.
 Global mobility, service portability, scalable
mobile networks.
 Better scheduling and call admission control
techniques.
 Seamless switching, variety of services based on
Quality of Service (QoS) requirements.
 Ad hoc networks and multi-hop networks.

10. 4G Applications
 Fully integrated IP solution “Anytime, Anywhere”.
 4G is capable of providing users with streaming High
definition television.
 Global access and interconnection.
 Data rates of at least 100Mbps.
 Seamless connectivity - wireless and wire-lines.

11. ITU’s Vision of IMT-Advanced
Providing Service Continuity

12. 4G NETWORKS
 NIT DoCoMo
(Japan)
 SPRINT NEXTEL
(Europe)
 DiGiWeb (Irish Co)
 TELUS & BELL
(Canada)
 VERIZON WIRELSS
(US)

13. 4G Broadband Services
 Low cost
 Coverage of Wide Area
 Wide Variety of Services Capability
 Capacity and performance improvement
 Innovative wireless technologies

14. Key Attributes of 4G
 Support for Multiple Applications and Services
 Quality of Service
 Network Detection and Network Selection
 Seamless Handover and Service Continuity
 Technology and Topology Independence

15. 3G & 4G
Attribute 3G 4G
Speed (Data Rate) 385 Kbps - 2 Mbps 20 – 100 Mbps
Frequency Bandwidth 1.6 - 2.5 GHz 2 – 8 GHz
Access WCDMA/CDMA 2000 MC-CDMA or OFDM
Bandwidth 5 – 20 MHz 100+ MHz
Switching Circuit/Packet Packet
Component Design Optimized antenna, Multi- Smart antennas, SW
band adapters Multi-band, Wideband
radios

16. 4G Coverage & Performance

17. Advantages
 Affordable cost
 High network capacity more simultaneous users per cell.
 A data rate of at least 100 Mbit/s between any two points in
the world.
 User has freedom and flexibility to select the service at a
reasonable price and QoS, anytime, anywhere.
 Seamless connectivity and global 7-8 across multiple
networks.

18. Disadvantages
 Battery usage is more
 Hard to implement
 Need complicated hardware

19. Future Outlook
 WiMAX First 4G Technology
 Standardization of wireless networks
 4G Multi-Biometric Platform

20. WiMAX First 4G Technology
 WiMAX is defined as "Worldwide Interoperability for
Microwave Access" by the WiMAX Forum.
 It was formed in June 2001 to promote conformance and
interoperability of the IEEE 802.16 standard officially known
as Wireless MAN.
 WiMAX aims to provide wireless data over long distances, in a
variety of different ways, from point to point links to full
mobile cellular type access.
 WiMAX service providers covering 430 million people
globally in 135 countries today.
 4G at a 3G price
 Speeds of up to 100 Mbps
 Customer satisfaction.

21. WiMAX Service Concept

22. 4G Multi-Biometric Platform
 Interoperability
 Scalability
 Modularity
 Flexibility
 Expandability
 Open Standards

23. CONCLUSION
 4G is showing tremendous promise and has the capacity to
revolutionize our world.
 High Speed, Capacity, low cost per bit
 Single worldwide cellular network
 Scope of wireless networks is expanding.

24. Bibliography
 www.google.com
 www.wikipedia.com
 www.technologyworld.com
 www.remon-4g.org.il
 http://www.ieee-infocom.org
 www.nmscommunications.com
 www.networkworld.com/news
 http://www.cefriel.it/topics/
 http://www.nd.edu/NET/wireless/4G
 http://www.nsf.gov
 http://www.wireless-world-research.org

25. Thank You

26. Queries
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