4 gppt
- 2. 4G TECHNOLOGY • 4G is the fourth generation of communication technology standards emerges between 2010-2015. • Mobile ultra-broadband Internet access. • A collection of technologies at creating fully packet-switched networks. • Speed of 100Mbps . • "MAGIC," which stands for - Mobile multimedia - Anytime any-where - Global mobility support - Integrated wireless - Customized personal service
- 3. EVOLUTION • 1G generation were analog systems, wireless standards TDMA and FDMA. • 2G were based on digital technology. • 3G use some of the existing infrastructure in GSM and CDMA networks. • 4G standards has used LTE and WiMAX.
- 5. CHALLENGES IN MIGRATION TO 4G Multimode user terminals • there will be a need to design a single user terminal that can operate in different wireless networks • overcome the design problems such as limitations in size of the device, its cost and power consumption. Security • Heterogeneity of wireless networks complicates the security issue. • Dynamic reconfigurable, adaptive and lightweight security mechanisms should be developed.
- 6. Charging/ billing • It is trouble some to collect, manage and store the customers’ accounts information. • billing customers with simple but information is not an easy task. Data encryption • If a GPS receiver has to communicate with the central transmitter • the communication link between these two components is not hard to break there is a need of using encrypted data.
- 7. TECHNOLOGIES USED • LTE – Long Term Evolution – LTE sounds better. • When you start hearing about LTE Advanced and WIMAX Release 2 • two formats realized by the International Telecommunications Union as True 4G at this time.
- 8. • WiMAX - Worldwide Interoperability for Microwave Access • it should be capable of around 40 megabits per second with a range of 30 miles. • it develops should surpass the 100MB/second which is the 4G standard. • Mobile WiMAX allows the use of high speed data transfers • the main competition for the 4G LTE services provided by cellular carriers.
- 9. SCOPE IN 4G • There are several technologies suggested to deploy in the 4G and these may include: • Software Defined Radio (SDR): • it is a radio communication system • The components are used to implemented in hardware (i.e. mixers, filters, amplifiers, modulators/demodulators, detectors. etc.)
- 10. Orthogonal frequency-division multiplexing • (OFDM): is a frequency-division multiplexing (FDM) scheme utilized as a digital multi-carrier modulation method. Multiple-input and multiple-output (MIMO), • it is the use of multiple antennas at both the transmitter and receiver to improve communication performance. • Universal Mobile Telecommunications System (UMTS), standardized by 3GPP.
- 11. APPLICATIONS • Better Usage of Multimedia Applications • Virtual Presence: 4G system gives mobile users a "virtual presence" • Video Conferencing • 4G in normal life. • Traffic control. • Mobile phones. • Sensor on public vehicle
- 12. ADVANTAGES • Quickly download files over a wireless network • Extremely high voice quality • Easily access Internet, IM, Social Networks, streaming media, video calling, etc. • Higher bandwidth • 4G is 10 times faster than 3G
- 13. DISADVANTAGES • New frequencies means new components in cell towers • Higher data prices for consumers • Consumer is forced to buy a new device to support the 4G • It is impossible to make your current equipment compatible with the 4G network • 4G is only currently available in certain cities within the United States.
- 14. CONCLUSION • 4G will be a Convergence Platform providing clear advantages in terms of Coverage, Bandwidth, Power Consumption • 4G networks making them available to everyone, anytime and everywhere. • The science ministry said it aims to implement the technology -- about 1,000 times faster than the 4G services currently available -- within six years. • South Korea Is Building A $1.5 Billion 5G Service That Can Download Movies In A Second.