4G is a high-speed network that combines internet technology with applications like Wi-Fi and WiMAX to provide speeds from 100 Mbps to 1 Gbps. 4G aims to offer seamless global roaming across networks, high quality support for multimedia like video calling, and all-IP connectivity. It uses technologies like MIMO and LTE to achieve data rates over 100 Mbps on the move or 1 Gbps stationary through advanced transmission methods and all-digital network components.

2. DEFINITION
 Forth Generation of mobile technology
 4G is a network that operates on Internet
technology, combines it with other
applications and technologies such as Wi-
Fi and WiMAX, and runs at speeds ranging
from 100 Mbps (in cell-phone networks) to
1 Gbps (in local Wi-Fi networks). – WWRF
 MAGIC – Mobile multimedia, Anytime
anywhere

3. OBJECTIVES
 Spectrally efficient system
 High network capacity
 Nominal data rate of 100 Mbps at high speeds and 1 Gbps
at stationary conditions as defined by the ITU-R
 Data rate of at least 100 Mbps between any two points in
the world
 Smooth handoff across heterogeneous network
 Seamless connectivity and global roaming across multiple
networks
 High quality of service for next generation multimedia
support (real time audio, high speed data, HDTV video
content, mobile TV, etc)
 Interoperable with the existing wireless standards
 All IP system, packet switched network

4. VISION

5. Seamless connection of network

7. TECHNOLOGIES
Based on transmission
VSF-Spread-OFDM
MIMO
Based on standards
3GPP Long Term Evolution
Ultra Mobile Broadband
WiMAX / WiBRO

8. COMPONENTS
 Multi-antenna Systems
 Software Defined Radio (SDR)
 Access schemes
 IPv6

9. 3G vs. 4G
3G 4G
Back compatible to 2G Extend 3G capacity by one
order of magnitude.
Circuit and packet switched Entirely packet switched
networks. networks.
Combination of existing & All network elements are
evolved equipment digital.
Data rate (up to 2Mbps). Higher bandwidth (up to
100Mbps).
Predominantly voice driven Converged data and voice
over IP
Wide area cell-based Hybrid: Integration of
wireless LAN
5-20 MHz Bandwidth 100 MHz (or more)
W-CDMA, 1xRTT, Edge OFDM and MC-CDMA
A number of air link protocols All IP (IPv6)
Optimized antenna design, Smarter Antennas, software

10. APPLICATIONS
 provide users with streaming high-
definition television
 Live teleconferencing
 Telegeoprocessing
 Virtual Navigtion
 Tele-medicine
 Crisis management application