17-07-2013, 03:05 PM
4G COMMUNICATION
[attachment=56659]
TECHNICAL DEFINATON
The International Telecommunications Union-Radio communications sector (ITU-R).
The International Mobile Telecommunications Advanced (IMT-Advanced).
Mobile WiMAX .
LTE.
Mobile WiMAX Release 2 (also known as WirelessMAN-Advanced or IEEE 802.16m').
LTE Advanced (LTE-A).
Internet Protocol (IP) based communication such as IP telephony .
Multiple-input multiple-output (MIMO) .
The term "generation" .
HISTORY AND PRE-4G TECHNOLOGY
The Defense Advanced Research Projects Agency (DARPA).
New mobile generations have appeared about every ten years since the first move from 1981 analog (1G) to digital (2G) transmission in 1992.
This was followed, in 2001, by 3G multi-media support, spread spectrum transmission and at least 200 kbit/s peak bitrate, in 2011/2012 was expected to be followed by "real" 4G, which refers to all-Internet Protocol (IP) packet-switched networks giving Ultra Mobile Broadband (gigabit speed) access.
Wireless cellular systems, introduced in the early 1980s
Use analog transmission, and are primarily intended for voice.
These networks are very slow
Speed less than 1 kilobits per second (Kbps)
IMT ADVANCED REQUIREMENT
Be based on an all-IP packet switched network.
Have peak data rates of up to approximately 100 Mbit/s for high mobility such as mobile access and up to approximately 1 Gbit/s for low mobility such as nomadic/local wireless access.
Be able to dynamically share and use the network resources to support more simultaneous users per cell.
Using scalable channel bandwidths of 5–20 MHz, optionally up to 40 MHz
Case Study :-Remote Stroke Diagnostic Center
University of California, San Diego (UCSD) needed to diagnose and administer a specific life-saving drug remotely to counter and nullify the debilitating effects of a stroke.
The drug is effective only if administered in the first three hours from the onset of the stroke symptoms.
[attachment=56659]
TECHNICAL DEFINATON
The International Telecommunications Union-Radio communications sector (ITU-R).
The International Mobile Telecommunications Advanced (IMT-Advanced).
Mobile WiMAX .
LTE.
Mobile WiMAX Release 2 (also known as WirelessMAN-Advanced or IEEE 802.16m').
LTE Advanced (LTE-A).
Internet Protocol (IP) based communication such as IP telephony .
Multiple-input multiple-output (MIMO) .
The term "generation" .
HISTORY AND PRE-4G TECHNOLOGY
The Defense Advanced Research Projects Agency (DARPA).
New mobile generations have appeared about every ten years since the first move from 1981 analog (1G) to digital (2G) transmission in 1992.
This was followed, in 2001, by 3G multi-media support, spread spectrum transmission and at least 200 kbit/s peak bitrate, in 2011/2012 was expected to be followed by "real" 4G, which refers to all-Internet Protocol (IP) packet-switched networks giving Ultra Mobile Broadband (gigabit speed) access.
Wireless cellular systems, introduced in the early 1980s
Use analog transmission, and are primarily intended for voice.
These networks are very slow
Speed less than 1 kilobits per second (Kbps)
IMT ADVANCED REQUIREMENT
Be based on an all-IP packet switched network.
Have peak data rates of up to approximately 100 Mbit/s for high mobility such as mobile access and up to approximately 1 Gbit/s for low mobility such as nomadic/local wireless access.
Be able to dynamically share and use the network resources to support more simultaneous users per cell.
Using scalable channel bandwidths of 5–20 MHz, optionally up to 40 MHz
Case Study :-Remote Stroke Diagnostic Center
University of California, San Diego (UCSD) needed to diagnose and administer a specific life-saving drug remotely to counter and nullify the debilitating effects of a stroke.
The drug is effective only if administered in the first three hours from the onset of the stroke symptoms.