evolution of mobile wtireless communication networks

Mobile Technology

BY

VEMULA KARTHIK KUMAR

Evolution from 1g to 4g system

Evolution of mobile wireless communication networks : 1G to 4G.

1g Wireless System :Developed in 1980s and completed in early 1990’s

2g Wireless System :The 2G phase began in the 1990s and much of this technology is still in use.

3g Wireless System :It was developed in the late 1990s until present day, Japan is the first country having introduced 3G nationally

4g Wireless System: It is the most advanced and most efficient which is yet to be implemented in India.

Services

Speeds

0G

Half-duplex lines One speaks, the other cannot speak.

Push-to-talk protocol (PTT) Voice only Two-way radio / “Walkie-Talkies” Mobile Telephone System (MTS)

1946 MTS

1962 IMTS

1G

Analog cell phones

Voice only

1980s to 1990s

NMT (Nordic Mobile Telephone)

AMPS (Advanced Mobile Phone System)

Problem with analog:

Not encrypted

Prone to distortions

2G

1991

Digital networks

SMS

Mainly circuit-switched

Multiplexing: TDMA and CDMA

Standards: GSM, iDEN

1999 2.5G

GPRS

Data rate up to 128 kb/s

EDGE

Data rate up to 384 kb/s

3G

Combines with IP based services Video-conferencing

Music downloading? Transfer of data:

Emails Documents

CDMA2000, UMTS, W-CDMA Problem:

Different places, different air interfaces Cost of deploying

Internet, e-mail, fax, e-commerce, music, video clips, and videoconferencing UMTS- UNIVERSAL MOBILE

TELECOMMUNICATION SYSTEM

4G

Expected in near future.

Mobile multimedia, Anytime anywhere, Global support, Integrated wireless solution, Customized personal service

WiMAX(Worldwide Interoperability for

Microwave Access)

Is a wireless communications standard designed to provide 30 to 40 megabit-per-second data rates.

It us designed for 4G wireless broad band solutions.

3G WIRELESS SYSTEM

Services include:

Global roaming

Superior voice quality and video conference

Information for web surfing, music, news, corporate intranet, transportation service etc

Transmission speeds from 125kbps to 2Mbps

Issues on 3G wireless system

High input fees for the 3G service licenses

Inefficient to meet needs of future high-performance

Multiple standards for 3G

Require wider bandwidth

Lack of coverage because it is still new service

4G wireless system

4G technologies are sometimes referred to by the acronym "MAGIC," which stands for Mobile multimedia, Anytime/any-where, Global mobility support, Integrated wireless and Customized personal service.

4G refers to the next generation of wireless technology that promises higher data rates and expanded multimedia services.

The 4G is defined as a completely new fully IP-based integrated system of systems and network of networks achieved after convergence of wired and wireless networks as well as computers, consumer electronics, and communication technology and several other convergences that will be capable to provide 100 Mbps and 1 Gbps, respectively in outdoor and indoor environments, with end-to-end QoS and high security, offering any kind of services at any time as per user requirements, anywhere with seamless interoperability, always on, affordable cost, one billing and fully personalized.

Generation Overview

4G Hardware

Ultra Wide Band Networks :Ultra Wideband technology, or UWB, is an advanced transmission technology that can be used in the implementation of a 4G network.

Smart Antennas :: Multiple “smart antennas” can be employed to help find, tune, and turn up signal information

Features of 4G Wireless Systems

Support interactive multimedia

User friendliness

High speed, high capacity and low cost per bit

Higher band widths

Terminal Heterogeneity

Network Heterogeneity

User and Industry Expectations

Wireless users can be categorized into generalized segments :

The Age segment

The Internet Usage segment

The Mobile Professional segment

Conclusion

4G will be a Convergence Platform providing clear advantages in terms of Coverage, Bandwidth, Power Consumption, variety of Services, ranging from Pop-Up advertisements to Location-Based services and IP Data casting ones.

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