1) The document discusses 4G communication technology, which provides higher data rates, capacity, and reliability over previous generations of mobile communication technology. 2) 4G uses multiple antennas at the transmitter and receiver to reduce multipath fading effects. It allows for seamless upgrades from 2G and 3G networks. 3) Some advantages of 4G include higher capacity, data rates, reliability, and quality of service compared to previous generations, while drawbacks include higher energy consumption and costlier devices.

1. WEL COME TO SEMINAR-2006

2. 4G COMMUNICATION TECHNOLOGY Presented by: SAROJ KUMAR LENKA 7 th Semester Electronics & Telecommunication Engg.

3. INTRODUCTION 4 th GENERATION MOBILE COMMUNICATION The technology behind latest mobile communication.

5. 1 st generation(1G),2 nd generation(2G), 2.5G and 3G communication system were conventionally used for communication.But now 4G communication is used in a new era of mobile communiction which is not only wireless but also simless coverage and integration for anytime and anywhere communication.4G is the modified version of 3G mobile communication .

6. 4G in mobile technology

12. MULTIPATH FADING

16. CONCLUSION:- As 4G is being the most efficient technology for transmission of voice and data,this is the mostly used technology in the recent mobile communication system.

17. THANKING YOU SAROJ KUMAR LENKA 7th semester E&TC ENGG