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
IntroductionDefinition : 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,"
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
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
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.
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.
ITU’s Vision of IMT-Advanced Providing Service Continuity
4G Broadband Services Low cost Coverage of Wide Area Wide Variety of Services Capability Capacity and performance improvement Innovative wireless technologies
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
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.
Disadvantages Battery usage is more Hard to implement Need complicated hardware
Future Outlook WiMAX First 4G Technology Standardization of wireless networks 4G Multi-Biometric Platform
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.
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.