4 G Mobile Communication System

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    4 G Mobile Communication System - Presentation Transcript

    1. FOURTH GENERATION MOBILE COMMUNICATION SYSTEMS 4G
      • History
      • 3G and Its Limitations
      • 4G Concept
      • Key Technologies
      • Benefits
      • Applications
      • Conclusion
      CONTENTS
    2. Mobile System Generations
      • First Generation (1G) mobile systems were designed
      • to offer a single service, i.e., speech.
      • Second Generation (2G) mobile systems were also
      • designed primarily to offer speech with a limited capability to offer data at low rates.
      • Third Generation (3G) mobile systems are expected
      • to offer high-quality multi-media services and operate
      • in different environments.
    3. S HORT H ISTORY of M OBILE T ELEPHONE T ECHNOLOGIES
    4. T HIRD G ENERATION (3G)
      • Major technologies
      • Bluetooth
      • Wireless LAN (IEEE 802.x standards) – WiFi
      • Short range wireless communications
      • Highly utilized and very popular: offices, airports, coffee shops, universities and schools
      • Two basic modes of operations:
      • - Ad-hoc networking: computers send data to one another
      • - Access point: sending data to the base station
    5. Limitations of 3G
      • Difficulty of CDMA to provide higher data rates
      • Need for continuously increasing data rate and
      • bandwidth to meet the multimedia requirements
      • Limitation of spectrum and it’s allocation
      • Inability to roam between different services
      • To provide a seamless transport end-to-end
      • Mechanism
      • To introduce a better system with reduces cost
    6. 4G Concept
      • “ The user has freedom and flexibility
      • to select any desired service with
      • reasonable QoS and affordable price,
      • anytime, anywhere.”
    7. Design Objectives
    8. Next Generation will also have specifically needs to resolve it’s own multiple issues
      • Heterogeneous networks
      • Access, handover
      • Location coordination, resource coordination
      • Adding new users
      • Support for multicasting
      • QoS, wireless security and authentication
      • Network failure backup
      • Pricing and billing
    9. Heterogeneous Networks
    10. Network Selection
      • Most Appropriate Network Selection Criteria
      • • Service Type
      • -Data rate
      • -QoS
      • • Available Resources
      • • User Context
      • - Environment (When and Where)
      • - Mobility
      • - User preferences
    11. Key 4G Technologies
      • OFDM ( Orthogonal Frequency Division Multiplexing )
      • SDR ( Software Defined Radio )
      • MIMO ( Multiple-input multiple-output )
      • Interlayer Optimization
      • Handover and Mobility
    12. Benefits
      • Convergence of Cellular Mobile Networks and WLANs
      • Benefits for Operators
      • Higher bandwidths, Lower cost of networks and equipment,The use
      • of licence-exempt spectrum, Higher capacity and Qos enhancement,
      • higher revenue .
      • Users
      • Access to broadband multimedia services with lower cost and here
      • mostly needed, Inter-network roaming .
      • C onvergence of Mobile Communication and Broadcasting
      • Benefits for Operators
      • Cellular operators will benefit from offering their customers a
      • range of new broadband multi-media services in vehicular
      • environments.
      • Users
      • Users will benefit from faster access to a range of broadband multi-
      • media services with reasonable QoS and lower cost.
    13. Wireless System Discovery
      • A multimode terminal attaches
      • to the WLAN and
      • scans the available
      • systems.
      • It can download
      • suitable software
      • manually or
      • automatically.
      .
    14. Applications
      • Virtual Presence
      • Virtual navigation
      • Tele-geoprocessing applications
      • Tele-Medicine and Education
      • Crisis management
      • Multimedia– Video Services
    15. CONCLUSION
      • As the history of mobile communications shows
      • attempts have been made to reduce a number of
      • technologies to a single global standard.
      • 4G seems to be a very promising generation of
      • wireless communication that will change the
      • people’s life in the wireless world.
      • 4G is expected to be launched by 2010 and the
      • world is looking forward for the most intelligent
      • technology that would connect the entire globe.
      • www.google.com
      • www.en.wikipedia.org/wiki/4G
      • www.4g.co.uk
      • www.uscwc.com/4GReport
      • www.four-g.net/
      R EFERENCES
    16. Any Questions…
    17. THANK YOU !!

    + Sanjeev kumar JaiswalSanjeev kumar Jaiswal, 2 years ago

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