4g technology. 1g:first generation 1g (or 1-g) refers to the first- generation of wireless...
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1G:FIRST GENERATION
1G (or 1-G) refers to the first-generation of wireless telephone technology
These are the analog telecommunications standards that were introduced in the 1980s
2G:SECOND GENERATION
By the end of the year 1980 the digital telecommunication standards were developed.
These systems provided better voice quality with higher capacity which even costed low.
3G:THIRD GENERATION
IMT-2000 is better known as 3G
3G provide faster communication services which include: voice ,fax internet. Broadband capabilities to support greater numbers of voice and video calls.
4G:FOURTH GENERATION
Support Interactive services like Video Conferencing, Wireles Internet,etc.
The networks will be all IP networks based on IPv6.
4G networks provide speeds of 100 Mbps while moving and 1 Gbps while stationary.
TECHNOLOGY USED IN 4GCOMMUNICATION SYSTEM The infrastructure for 4G will beonly packet-based (all-IP). But there is suggestion to have an open Internet
platform. The 4G technology en suite with 802.16emobile version of WiMax (also known asWiBro), and HC-SDMA, Adoptive Modulationand coding (AMC),Adaptive Hybrid ARQ ,MIMO AND OFDM and Open distributed Ad-Hoc Wireless Network .
4G: Data rate Facts
Transmission at 100 Mbps 2000 times faster than
mobile data rates Companies developing 4G
technology Cellular phone companies: Alcatel, Nortel, Motorola
IT Companies: HP,LG Electronics
History of 4G Analog
In wireless cellular phone networks, radio towers pick up signals from handsets and connect them to the telephone system.
First-generation or 1G cell phones used insecure analog signals between the handset and the radio towers.
Developed in the 1980s, they allowed voice communication only and there was no single recognized standard
Digital
The first digitally encrypted cellular telephones became commercially available in Finland in 1991.
As well as a more secure voice technology, second-generation phones could transmit and receive data such as text messages.
History of 4G Mobile Internet
New third-generation standards for mobile telecommunications came into effect from 2000 onwards.
The standards specify that 3G services must allow simultaneous speech and data transfers and peak data rates of at least 200 kilobits per second.
Mobile Internet access and video calls became possible, followed by mobile broadband service to laptops and advanced mobile phones
4G
A cellular system claiming to be fourth-generation must provide high-speed data transfers in both mobile and stationary situations.
The International Telecommunication Union defined specific standards in October 2010.
Although several carriers claim to have 4G systems, as of November 2010 none of them complies with the latest specification.
4G POSSIBILITIES
Enhanced Mobile Gaming
4G enhanced wireless capabilities that deliver mobile gaming interaction with latency less than five milliseconds.
Play online multiplayer games while traveling at high speeds or sitting outside.
0G1G2G3G4G
4G POSSIBILITIES
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Virtual Presence
For example, decide if you want to personally respond when someone rings your front door while you are away from home.
4G BROADBAND ACCESS IN REMOTE LOCATIONS
4G networks will provide a wireless alternative for broadband access to residential and business customers.
In addition, 4G will provide the first opportunity for broadband access in remote locations without an infrastructure to support cable 0G
1G2G3G
4G
Software-Defined Radio (SDR)
SDR is one form of OWA (open wireless architecture).
Since 4G is a collection of wireless standards, the final form of a 4G device will constitute various standards.
This can be efficiently realized using SDR technology, which is categorized to the area of the radio convergence.
POWER OF VISION(4G)
Eyewear with Helmet
Helmet allows the soldier to see a 17-inch computer screen displaying anything relayed to the soldier.
5.SOCIAL NETWORKING AND 4GTECHNOLOGYThe social networking process is aninvolved Varity of networks such of CorporateNetwork , Home area network , WirelessPersonal area network n Internet and vehicle
areanetwork . The combinational networkrepresented below with its possible
connectivityarchitecture.
4G: Anytime, Anywhere Connection Also known as ‘Mobile Broadband
everywhere’ ‘MAGIC’
Mobile Multimedia CommunicationAnywhere, Anytime with AnyoneGlobal Mobility SupportIntegrated Wireless SolutionCustomized Personal Service
According to 4G Mobile Forum, by 2008 over $400 billion would be invested in 4G mobile projects.
In India, communication Minister Mr. Dayanidhi Maran, has announced a national centre of excellence to work in 4G arena.
ADVANTAGES
1. Very High Data Rates2. Virtual Presence 3. Enhanced GPS Services 4. Media-Rich Apps 5. Telemedicine
conclusion
4G can be imagined of as an integrated wireless system that enables seamless roaming between technology
A promising 4G can support intaractive multimedia services with wider bandwidths and higher bit rates