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