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.
