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WIRELESS SYSTEMS

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CONTENTS• Introduction• History of mobile generation• Evolution of 4G• Objectives• Features• 4G architecture• 4G network in India• 3G vs 4G• Advantages• Disadvantages• Applications

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INTRODUCTION TO 4G• 4G was introduced to provide

a Wide Area Network for internet access

• It provided high bandwidth and broadband

• According to the WWRF,4G is a combination of wired and wireless networks in computer

• 4G networks are projected to provide speeds of 100 Mbps while moving and 1 Gbps while stationary

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HISTORY OF MOBILE GENERATION

• Analog transmission (1G) in 1981

• Digital transmission (2G) in 1992

• Multimedia transmission (3G) in 2001

• Mobile ultra-broadband transmission (4G) in 2012

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EVOLUTION

• The first commercial deployment was by Telia Sonera and NetCom

• Telia Sonera branded the network “4G”

• The modem devices on offer were manufactured by Samsung (dongle GT- B3710)

• The network infrastructure were created by Huawei (in Oslo) and Ericsson (in Stockholm)

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OBJECTIVE

• Quality of service

• Present requirements in demand

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FEATURES

•Support

•Mobile system

•Cost

•Infrastructure

•Others

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4G ARCHITECTURE

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4G NETWORK IN INDIA• In India on 10 April 2012, India's

telecom company Bharti Airtel has launched India's first 4g services in Kolkata using TD-LTE technology

• Aircel :8 cirles covered by aircel• Airtel:Madhya Pradesh &

Chattisgarh, Kolkata, Karnataka Chandigarh, Bengaluru, Pune

• Augere :Madhya Pradesh & Chattisgarh,Bangladesh,Pakistan

• Qualcomm :Delhi, Mumbai, Haryana and Kerala

• Tikona : Gujarat, Uttar Pradesh (east and west), Rajasthan & HP

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3G vs 4G3G 4G

Frequency Band: 1.8 – 2.5GHz 2 – 8GHz

Forward error correction (FEC)

Turbo codes Concatenated codes

Data Throughput Up to 3.1Mbps

Practically speaking, 3 to 5 Mbps but potential estimated at a range of 100 to 300 Mbps

Data transfer rate

2 Mbps and more

20 Mbps and more

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3G vs 4G3G 4G

Peak download rate 1Gbps 100Gbps

Peak upload rate 50Mbps 500Mbps

Switching Circuit/Packet Packet

Access WCDMA/CDMA 2000

MC-CDMA or OFDM

Component Design Optimized antenna, Multi- band adapters

Smart antennas, Wideband radios

Services And Applications

CDMA 2000, UMTS etc

Wimax, LTE and Wi-Fi

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ADVANTAGES

•Broadband access in remote locations•Affordable cost•Speed•Seamless connectivity •Interoperation•Music•Data access•Photo sharing

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DISADVANTAGES

• Battery

• Implementation

• Hardware

• Present situation

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APPLICATIONS

• 4G and public safety• Sensors in public vehicle• Cameras in traffic light• First responder route selection• Traffic control during disasters• M-commerce• Entertainment services• Communication services• Organizational services

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THANK YOU