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D.MANOJ KUMAR III. B.Tech, E.C.E N.B.K.R.Institue of Science and technology. P.PALLAVI II. B.Tech, E.C.E Kakatiya Institue of Technology and science. 4G-MOBILE COMMUNICATION. Contents. 1. Introduction 2. Key Features 3. Multimode user terminals 4. Terminal mobility

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4g mobile communication
D.MANOJ KUMAR

III. B.Tech, E.C.E

N.B.K.R.Institue of

Science and technology

P.PALLAVI

II. B.Tech, E.C.E

Kakatiya Institue of

Technology and science

4G-MOBILE COMMUNICATION
contents
Contents

1. Introduction

2. Key Features

3. Multimode user terminals

4. Terminal mobility

5. Personal mobility

6. Security and Privacy

7. Conclusions

introduction
Introduction
  • Communication is exchange of information
  • Communication may be wired or wireless
  • Mobile communication has undergone three generations
  • The next generation of mobile communication is fourth generation
key features of 4g technology
Key Features of 4G Technology
  • High Usability
  • Support for multimedia services at low transmission cost
  • Personalization
  • Integrated services
multimode user terminals
Multimode user Terminals
  • Multimode user terminals are essential in 4G systems
  • They adopt different networks by reconfiguring themselves
  • These eliminate the need to use multiple terminals or multiple hardware components in a terminal
  • One way of implementing Multimode user terminal is to adopt the software radio approach
terminal mobility
Terminal mobility
  • To provide wireless services anytime and anywhere, terminal mobility is a must in 4G systems
  • It allows users to roam across boundaries of wireless networks
  • There are two main issues in this:

(i). Location management

(ii). Handoff management

  • Location management tracks and locates a mobile terminal
  • Handoff management maintains ongoing communications when terminal roams
vertical and horizontal handoff of a mobile terminal
Vertical and Horizontal handoff of a mobile terminal

UMTS COVERAGE

GSM Coverage

WLAN Coverage

vertical handoff

horizontal handoff

personal mobility
Personal mobility
  • This concentrates on the movement of user instead of user ’s terminals
  • It provides personal communications and personalized operating environments
  • In this each user is given an unique identifier and served by some personal mobile agents
  • These agents acts as mediators between the user and the internet
  • A user belonging to a home network has servers with the updated user profile
  • When the user moves from home network to a visiting network, user ‘s agents will migrate to the new network
security and privacy
Security and Privacy
  • Different standards implement their security for their unique security requirements
  • The key concern in security designs for 4G networks is flexibility
  • Tiny SESAME is a light weight reconfigurable security mechanism that provides security service for multimedia applications in 4G networks
conclusions
Conclusions
  • 4G systems will support comprehensive and personalized services.
  • 4G systems must be hastened as some of the video applications can not be contained within 3G
  • 4G networks allows the users to use any system at anytime and anywhere
  • The data rates targeted are 20MBPS and that will be the 4th generation in mobile communication technology
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