Ce diaporama a bien été signalé.
Nous utilisons votre profil LinkedIn et vos données d’activité pour vous proposer des publicités personnalisées et pertinentes. Vous pouvez changer vos préférences de publicités à tout moment.

Management information system 4G

  • Identifiez-vous pour voir les commentaires

Management information system 4G

  1. 1. Management Information System  Group members :- • MANE:- Roll. No. Enrollment no • Vyas Bhumit (120) 137680592160 • Voraliya Nishit (119) 137680592159 • Prajapati Dipesh (100) 137680592107 • Panchamiya Yesh (90) 137680592085 • Khankhala Nitesh (83) 137680592060
  2. 2. Difference Between 3G & 4G Cellular Network Generations
  3. 3. Flowof Presentation • Introduction • Cellular Network & Generations • 4G • Advantages of LTE • Major LET Radio Technologies • Measurement Steps • Background difference between 3G & 4G • Conclusion
  4. 4. Introductionof Cellular Network • Base stations transmit to and receive from mobiles at the assigned spectrum • Multiple base stations use the same spectrum (spectral reuse) • The service area of each base station is called a cell • Each mobile terminal is typically served by the ‘closest’ base stations • Handoff when terminals move
  5. 5. Cellular Network Generations • It is useful to think of cellular Network/telephony in terms of generations: • 0G: Briefcase-size mobile radio telephones • 1G: Analog cellular telephony • 2G: Digital cellular telephony • 3G: High-speed digital cellular telephony (including video telephony) • 3.5G: Not an officially recognized standard by the ITU. It is an interim or evolutionary step to the next generation of cellular technology that will be known as IMT-Advanced according to definitions by the ITU. • 4G: IP-based “anytime, anywhere” voice, data, and multimedia telephony at faster data rates than 3G
  6. 6. 4G “anytime, anywhere” • 4G (LTE) • LTE stands for Long Term Evolution • Next Generation mobile broadband technology • Promises data transfer rates of 100 Mbps • Based on UMTS 3G technology • Optimized for All-IP traffic
  7. 7. Advantages of LTE
  8. 8. Comparison of LTE Speed
  9. 9. Major LTE Radio Technologies • Uses Orthogonal Frequency Division Multiplexing (OFDM) for downlink • Uses Single Carrier Frequency Division Multiple Access (SC(single carrier )-FDMA) for uplink • Uses Multi-input Multi-output(MIMO) for enhanced throughput • Higher RF power amplifier efficiency (less battery power used by handsets)
  10. 10. Context 11 Evolved hardware technologies + Improved network bandwidth = Entertainment apps on mobile
  11. 11. Context When you are NOT mobile, you use(Wireless Fidelity ) 12
  12. 12. Context Millions of passengers per day! 13
  13. 13. Context 14 Can HSPA(High Speed Packet Access ) provide the same level of service to mobile users on public transport? pictures’ source: Wikipedia HSPA Node B HSPA Node B
  14. 14. Measurement Setup • Two Servers: • Lab & Data Center • Three types of evaluations: • download only; upload only; simultaneous download & upload. 15
  15. 15. Background difference: Between 3G & 4G 1. Network:- 3G technologies are in widespread use while 4G compliant technologies are still in the horizon 2. 4G speeds are much faster compared to 3G:- 4G speeds are meant to exceed that of 3G. Current 3G speeds are topped out at 14Mbps downlink and 5.8Mbps uplink. To be able to qualify as a 4G technology, speeds of up to 100Mbps must be reached for a moving user and 1Gbps for a stationary user
  16. 16. 3. Features and capabilities:- Specifications 3G 4G Frequency Band 1.8 – 2.5 GHz 2 – 8 GHz Bandwidth 5-20 MHz 5-20 MHz Data rate Up to 2Mbps 20 Mbps or more Access Wideband CDMA Multi-carrier – CDMA or OFDM(TDMA) FEC Turbo-codes Concatenated codes Switching Circuit/Packet Packet
  17. 17. Specifications 3G 4G Data Throughput: Up to 3.1mbps 3to5mbps but potential estimated at a range of 10 to300 mbps. Peak Upload Rate: 50 Mbit/s 50 Mbit/s Peak Download Rate: 100Mbit/s 1Gbit/s
  18. 18. Conclusion • Mobility is a double edged sword • Degrades HSPA services, e.g. throughput • Improves fairness in bandwidth allocation among users and traffic flows • Communication characteristics in HSPA transitional regions are very complicated 19
  19. 19. 20

×