4G Wireless Systems Full Seminar Report Download

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FOURTH GENERATION 4G
What is 4G ??
 4G = fourth genration / B3G -Beyond 3rd Generation (UMTS, IMT-2000) mobile communications
 4G = successor of the 3G and 2G standards
 4G - Next level of evolution in the field of wireless communications.
 4G -MAGIC –Mobile multimedia , Anytime/anywhere Global mobility support,Integrated wireless and customised personal service.
 4G provides fast access.
Features
 4G will have all standards from 2G and 3G implemented.
 Infrastructure will be packet-based(all-IP)
 Open internet platform.
 Technologies include Flash-OFDM,the 802.16e mobile version of Wimax and HC-SDMA.
 Higher speed.
Objectives
 A spectrally efficient system(in bits/s/Hz and bits/ s/Hz/site).
 High network capacity:more simultaneous users per cell
 A data rate of atleast 100 Mbits/s between any two points in the world.
 Smooth hand off across heterogeneous networks.
 Seamless connectivity and global roaming across multiple networks.
 High quality of service for next generation multimedia support.
 Interoperability with existing wireless standards.
 An all IP,packet switched network.
Killer” Applications of 4G
 Location application
 Visualized virtual navigation Telegeoprocessing: GIS, GPS
 Life- saving: Telemedicine
 Voice over Internet Protocol (VoIP) for IPv6
 Crisis management applications
4G uses :
 Smart antennas.
 Multiple-Input-Multiple-Output (MIMO)systems.
 Space-time coding.
 Dynamic Packet Assignment.
 Wideband OFDM.