Presenting 4 g technology
- 2. INTRODUCTION • 4 G TECHNOLOGY IN INDIA WAS INTRODUCED OR LAUNGED BY BHARITI AIRTEL IN KOLKATA ON APRIL,10,2012. • IT IS IN INDIA AVAILABLE AT BANGALORE,PUNE,CHANDIGARH,KOLKATTA • ITS FREQUENCY IS #40(2.3GHZ) • IT SUPPORTS QUALITY OF SERVICES.
- 3. ABSTRACT • WIRELESS GENERATION AT A GLANCE • EVALUATION OF 4G ARCHITECTURES • INTERNET SPEEDS IN 4G • QUALITY OF SERVICE CHALLENGES • 4G APPLICATIONS • LIMITATION OF 4G • CONCLUSION
- 4. 4 G WORKING TECHNIQUE
- 5. Technology 1G 2G 2.5G 3G 4G Design Began 1970 1980 1985 1990 2000 Implementation 1984 1991 1999 2002 2014? Service Analog voice, synchronou s data to 9.6 Kbps Digital voice, short messages Higher capacity, Packetized data Higher capacity, broadband data up to 2Mbps Higher capacity, Completely IP- oriented multimedia, data to hundreds of megabits Standards AMPS, TACS NMT, etc. TDMA, GSM, CDMA, PDC GPRS, EDGE, 1xRTT WCDMA, CDMA 2000 SINGLE STANDARD Data Bandwidth 1.9 Kbps 14.4 Kbps 384 Kbps 2 Mbps 200 Mbps Multiplexing FDMA TDMA, CDMA TDMA, CDMA CDMA CDMA? Core Network PSTN PSTN PSTN, Packet network Packet network Internet
- 7. QUALITY OF SERVICES CHALLENGES 1.Multi-access interface, timing and recovery. 2. Higher frequency reuse leads to smaller cells that may cause intra-cell interference or higher noise figures due to reduced power levels. 3. The Digital to analog conversions at high data rates, multiuser detection and estimation (at base stations), smart antennas and complex error control techniques as well dynamic routing will need sophisticated signal processing. 4. Issues in the interface with the ad hoc networks should be sorted out. 4G systems are expected to interact with other networks like the Bluetooth, hiperlan, IEEE802.11b, etc. 5. Voice over multi-hop networks is likely to be an interesting problem because of the strict delay requirements of voice. 7. Security will be an important issues 8. Networking protocols that adapt dynamically to the changing channel conditions. 9. Seamless roaming and seamless transfer of services.
- 8. What is 4G? • Fourth Generation Technology • Faster and more reliable • 100 Mb/s • Lower cost than previous generations • Multi-standard wireless system • Bluetooth, Wired, Wireless • Ad Hoc Networking • IPv6 Core • OFDM used instead of CDMA • Potentially IEEE standard 802.11n • Most information is proprietary
- 9. REASON FOR 4G RESEARCH • Even though 3G has successfully been introduced to mobile users, there are some issues that are debated by 3G providers and users. • High input fees for the 3G service licenses • Great differences in the licensing terms • 3G phones are expensive
- 10. Communication Architecture • Broadcast layer: • fix access points, (i.e.) cell tower connected by fiber, microwave, or satellite (ISP) • Ad-hoc/hot-spot layer: • wireless LANs (i.e. internet at Starbuck’s)
- 11. communication Architecture • Personal Layer Gateway: • devices that connect to upper layers; cell phone, fax, voice, data modem, MP3 players, PDAs • Info-Sensor layer: • environmental sensors • Fiber-optic wire layer: • high speed subterranean labyrinth of fiber optic cables and repeaters
- 12. ENHANCE MOBILE GAMING • Experience enhance wireless capabilities that deliver mobile gaming interaction with less than five seconds • Play online multi player games while traveling at high speeds or sitting outside
- 13. BROADBAND ACCESS IN REMOTE LOCATION • 4G will provide a wireless alternative for broadband access • I will provide first opportunity for broadband access in remote locations without an infrastructure to support cable or DSL access.
- 14. 4G TECHNOLOGY • APPLICATIONS • it is used in adhoc communication • in networking • multimedia communication • in modems,cellphones cloud computing • LIMITATION • Carriers and providers have to plan carefully to make sure that expenses are kept realistic
- 15. OUR VIEW ABOUT 4G • it has large application • good connectivity • access speed is good • broadband • mobility access • it is good but the limitation of 4g should o overcomed for the improvement of 4g
- 17. TECHNOLOGIES AFTER 4G • 5G technology offer high resolution for crazy cell phone user and bi- directional large bandwidth shaping. • The advanced billing interfaces of 5G technology makes it more attractive and effective. • 5G technology also providing subscriber supervision tools for fast action. • The high quality services of 5G technology based on Policy to avoid error. • 5G technology is providing large broadcasting of data in Gigabit which supporting almost 65,000 connections.
- 18. THANK YOU