4G wireless technology provides broadband internet access at speeds up to 100 Mbps for mobile devices and 1 Gbps for local networks. It uses a fully IP-based network for all applications and allows seamless switching between voice, data, and multimedia. Key technologies that enable 4G include OFDM for high spectral efficiency, MIMO for increased data rates, and adaptive radio interfaces. 4G provides integrated services like high-definition mobile TV, allows seamless connectivity between wireless and wired networks, and offers lower costs per bit than 3G networks. However, 4G also requires more advanced hardware and can drain batteries faster than 3G technology.

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

2. Contents
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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
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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 multiantenna 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, Multiband adapters
Smart antennas, SW
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
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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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