evolution of mobile cellular communication
Post on 29-Jan-2018
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Evolution of Mobile Cellular Communication
....ITNOYON
An Introduction
Mobile Radio Invent in the year 1920
Frequency modulation in 1930
Start mobile phone service(USA) in 1940
Start mobile phone service(Europe) in 1940
In World war army first use mobile phone
An Introduction
General people use mobile phone in 1973
In 1979 Asian biggest telephone company NTTC
In the year 1980 it uses USA, Canada, Maxico
In 1981 NMT(Nordic Mobile Telephone
Mobile Generation
In general There are four types of generation in mobile communication
1. First generation (1950-1989)
2. Second generation (1990-2000)
3. Third generation(2001-2008)
4. Forth generation(2009- till now)
………………………………….
First Generation (1950-1989]
First generation Mobile Standard:
1. AMPS: (Advanced Mobile Phone System)
2. NMT: (Nordic Mobile Telephone)
3. TACS: (Total Access Communication System)
First Generation (1950-1989]
Feature: Services – Only Voice
Technology – Analog and semiconductor technology
Speed - 1kbps to 2.4 kbps
Multiplexing – FDMA
Switching – circuit switching
Core Network – PSTN only
Frequency – 800- 900 MHz (Low)
Second Generation [1990-2000]
Second generation mobile standard :
1. GSM: (Global system for Mobile Communication)
2. CDMA : (Code Division Multiple Access )
(for high frequency band)
3. TDMA : (Time Division Multiple Access)
( Data transmission area)
Second Generation [1990-2000]
Feature: Technology – Digital Mobile Network system
Speed – 14kbps to 64Kbps
Frequency Band – 850 - 1900 MHZ (GSM)
Multiplexing /Access Technology – TDMA & CDMA.
Switching – Circuit switching
Third Generation [2001-2008]
Third Generation mobile standard:
1. UMTS : (Universal mobile telecommunication system)
2. WCDMA :(Wideband Code Division Multiple Access)
4. HSDP : (High Speed Download Packet Access)
Third Generation [2001-2008]
Feature: Speed : 384KBPS to 2MBPS
Frequency : about 8 to 2.5GHz
Bandwidth – 5 to 20 MHz
Use GSM, EDGE, UTMS and CDMA-2000
Services – FOMA(Freedom of Multiple Access )
Fourth Generation[2009- till now]
•Standards:• Long-Term Evolution Time-Division Duplex
(LTE-TDD and LTE-FDD)
•Mobile WiMAX standard (802.16m standardized by
the IEEE
Fourth Generation[2009- till now]
Feature:1. Speed : 100Mbps while moving and 1Gbps while
stationary
2. OFDMA multi-carrier transmission and frequency-
domain equalization (FDE) schemes
3. Smart antenna arrays \
4. Multiplexing/Access Technologies - OFDM, LAS-
CDMA and Network-LMDS
5. Bandwidth - 5–20 MHz, optionally up to 40 MHz
Update Generation .
Coming soon………………………
Conclusion
The world is trying to become completely wireless, demanding uninterrupted access to information anytime and anywhere with better quality, high speed, increased bandwidth and reduction in cost.
Thank you
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