4G wireless Technology

• ›  4G Wireless Systems or Fourth generation wireless system is a packet switched wireless system with wide area coverage and high throughput. It is designed to be cost effective and to provide high spectral efficiency .
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•     The 4g wireless uses Orthogonal Frequency Division Multiplexing (OFDM), Ultra Wide Radio Band (UWB),and Millimeter wireless.

• History of 4G technology

1. Features of 4G TECHNOLOGY

q Support for multimedia services like teleconferencing and wireless internet.

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q   Wider bandwidths and higher bit rates.

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q   Entirely packet-switched network.

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q    Global mobility and service portability.

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q    Support for previous wireless technologies.

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q    High internet speed.

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q    Tight network security.

Technology used in 4G

•      WiMAX
•    OFDM(Orthogonal Frequency Division Multiplexing)
•      UWB(ultra wide band)
•      Smart Antennas
•      IPv6

Application

q In traffic control.

q location application.

q Tele-medicine.

q In crisis management application.

q In Device and Smartphone.

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