1 / 13

INTRODUCTION

INTRODUCTION. 4G stands for the fourth generation of cellular wireless standards. It is a successor to 3G and 2G families of standards. Fourth generation mobile communications systems that are characterised by high - speed data rates at 20 to 100 M bps. OBJECTIVES.

tekla
Download Presentation

INTRODUCTION

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. INTRODUCTION • 4G stands for the fourth generation of cellular wireless standards. • It is a successor to 3G and 2G families of standards. • Fourth generation mobile communications systems that are characterised by high-speed data rates at 20 to 100 Mbps

  2. OBJECTIVES • 4G is being developed to accommodate the QoS • Mobile broadband access • MMS • Video chat • Mobile TV like HDTV • Digital video broadcasting • A data rate of at least 100 Mbit/s • Smooth handoff across heterogeneous networks • An all IP, packet switched network

  3. ITU Requirements and 4G • Based on an all-IP packet switched network. • Peak data rates of up to approximately 100 Mbit/s • Scalable channel bandwidth, between 5 and 20 MHz, optionally up to 40 MHz • 802.16m standardized by the IEEE (i.e. WiMAX) • LTE Advanced standardized by the 3GPP

  4. PRINCIPLES OF TECHNOLOGY • MIMO • OFDM/OFDMA • Turbo principle error-correcting codes • Channel-dependent scheduling • IP V6

  5. DATA RATE

  6. 4G candidate systems • LTE Advanced • IEEE 802.16m or WirelessMAN-Advanced • 3GPP Long Term Evolution (LTE) • Mobile WiMAX (IEEE 802.16e) • UMB (formerly EV-DO Rev. C) • Flash-OFDM • iBurst and MBWA (IEEE 802.20) systems

  7. FEATURES • High usability: anytime, anywhere, and with any technology • Support for multimedia services at low transmission cost • Personalization • Integrated services

  8. CONCLUSION • 4G is still at research stage, available after 2011 (?)... ... While the impact of 3G is still uncertain! • Employing the discussed techniques, 4G has a significant potential for capacity improvements over 3G systems. • The Japanesemarket and industries (NTT DoCoMo) seem to be leaders in mobile technologies. Thereforeweshould have a look on their innovations…

  9. THANK YOU

  10. Free download and upload ppt ,slides at……. www.seminarslides.com

More Related