my 1st seminar

1. welcome

2. MOHANLAL SUKHADIA UNIVERSITY
SUBMITTED TO :
SNEHA MAM
SUBMITTED BY
:
HINA KHAN
BCA 1ST SEM

3. NETWORKS

4. CONTENTS
 WHAT IS NETWORK
 TYPES OF NETWORK
 GENRATION OF NETWORK
 3G NETWORK
 ADVANTAGE OF 3G
 DISADVANTAG OF 3G
 4G NETWORK
 ADVANTAGE OF 4G
 DISADVANTAGE OG 4G
 3G V/S 4G

5. NETWORKS

6. What is network ?
Consists of two or more
computer linked with each
other in order to share
resources.

7. Types of network
MAN:

8. Local area network
LAN is a network
that is confined to a
relatively small area.

10. Example of LAN
 Writing lab
School
Building

11. MAN metropolitian area
network
MAN is a large computer
network that spans (extent) a
metropolitan area or campus.
Its geographic scope falls
between a WAN and LAN.

13. Wide area network
WANs connect
network in larger
geographic area .

15. Example of WAN
The united states
The world

16. Generation of Network

18. 1G
•This is a first analog cellular
system ,which started early
1980.
•1G refers to the first
generation of wireless
telephones technology,
mobile telecommunications

19. 2G
•Second generation
telephone technology is
based on GSM .
•2G launched in the year
1991.

20. 3G NWTWORK

21. 3G
• The 3G network is the third generation of
mobile networking and
telecommunications
.
• It features a wider range of services and
advances network capacity over the
previous 2G network.
.

22. • A 3G network provides for download speeds
of 14.4 megabits per sec.
.
• Upload speeds of 5.8 megabits per second .
• It is also increases the rate of information
transfer known as spectral efficiency.

23. Advantages of
3G:
Availability of fixed and variable rates
Always online devices – 3G uses IP connectivity
which is packet based
Rich multi media services are available

24. Disadvatages of 3G:
•The cost of cellular infrastructure , upgrading base stations
is very high
•Needs different handsets.
•Roaming and data work together has not yet been
implemented
•Power consumption is high
•Requires closer base stations and are expensive
• Network deployment costs and handset subsidies
subscribers are tremendous.

25. We can use 3G NET By 3G
DONGLE & MODEM

26. Towers of 3G NETWORK

27. 4G NETWORK

28. 4G
•Current commercially available technologies
LTE (Long-Term Evolution) and Wi-Max claimed
that they are sufficiently advanced from 3G and
thus claimed the right to call their technology.
• The target speed was at least 100 Mbps to
qualify for the 4G label.

29. Advantages:
Multiple devices will have the ability to run off of 4G network
Quickly download files over a wireless network
Extremely high voice quality
Easily access Internet, Social Networks, streaming media,
video calling, etc.
Higher bandwidth
4G is 10 times faster than 3G

30. Disadvantages:
Jamming and spoofing can interfere with people's use of
networks
All 4G networks will share the same infrastructure; if one goes
down, they all go down
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.

31. We can use 4G NET. By 4G
DONGLE & MODEM

32. Towers of 4G Network

33. 3G NETWORK
4G NETWORK

34. 3G 4G
Data
Throughput:
Up to 3.1Mbps with an
average speed range
between 0.5 to 1.5 Mbps
Practically speaking, 2 to
12 Mbps (Telstra in
Australia claims up to 40
Mbps) but potential
estimated at a range of
100 to 300 Mbps.
Peak Upload
Rate:
5 Mbps 500 Mbps
Peak
Download
Rate:
100 Mbps 1 Gbps
Switching
Technique:
packet switching packet switching, message
switching

35. Network
Architecture:
Wide Area Cell Based Integration of wireless
LAN and Wide area.
Services And
Applications:
CDMA 2000, UMTS,
EDGE etc
Wimax2 and LTE-
Advance
Forward
error
correction
(FEC):
3G uses Turbo codes
for error correction.
Concatenated codes
are used for error
corrections in 4G.
Frequency
Band:
1.8 – 2.5 GHz 2 – 8 GHz

37.  BIBLIOGRAPYH
 I want to thank SNEHA
MAMfor helping me in
completion of my Seminar
 I would like to thank my
friends who helped me
through this project.

38. THANK
YOU
Thank
you