The age we are living in, can undoubtedly be called as the Age of Information and Communication.The communication industry has become the fastest growing industry throughout the world and the need of transmitting all kind of data at the fastest possible speed has urged the technologist to strive for betterment and enhancement of system every day. Yesterday, the technology which we had found as the Latest one , today it's out dated and what we are using today would be obsolete tomorrow. One of the outcome of this fast pace development is Fourth Generation Technology.Fourth-Generation Communication System better known as 4G system can be described as the next generation of wireless networks or protocol that will replace the existing 3G networks in near future. The system features Fourth generation mobile communication technology, the concept could be called wide band (Broadband) access and distribution network, with non-symmetric over 2 Mb / s data transfer capability, including wide band wireless fixed access, broad band wireless LAN, mobile wide band systems and interoperability of broadcast networks (terrestrial and satellite based systems).
4-G system is not going to be introduced over night as it’s in its developmental stage yet. This system shouldn't be treated as something totally new or alien to the users as it has been a result of gradual progression of the previously and presently used communication systems. We can see a marvelous growth in mobile communication systems since the last two decades of 1900s.Digital services started replacing the analog ones. But need for efficient data Transfer had made the users unsatisfied with. The data rates worsen under certain conditions like bad weather or or in case of busy network so these disadvantages gave way to new technologies which have come into picture now. The first is 2.5G (GPRS) technology which allows data transfer at a faster rate than GSM . Further enhancements to GSM networks are provided by Enhanced Data rates for GSM Evolution (EDGE) technology providing up to three times the data capacity of GPRS .There after 3G (WCDMA/UMTS) technology has come into existence with the maximum data transfer rate of 2Mbps. But the 4th Generation system is ensuring a distinctively higher rate of data transfer, that would be ranging from 100 Mbps to 1Gbps .
Alvin Toffler has once said “ The future always comes too fast,.” This is evident from the evolution of communication system . The 4G technology will be able to support Interactive services like Video Conferencing, ultra-broadband Internet access, IP telephony, gaming services, and Wireless Internet. This system is also a step towards providing services a very less cost. This would be made possible by higher Bandwidth.
The networks will be all IP networks based on IPv6. Improved access technologies like OFDM and MC-CDMA (Multi Carrier CDMA) will likely to be used.
Another remarkable feature of 4G system is its security features which can make data transfer more reliable and safe. Security features will be much better to provide a comprehensive and secure all-IP based mobile broadband solution to smart phones, laptop computers,wireless modems and other mobile devices. More efficient algorithms at the Physical layer will reduce the Inter-channel Interference and Co-channel Interference.
The 4G system's objectives include its latent applications and system requirements, technical challenges, and related standardization activities. It has been revealed that the major capability of the 4G system should be its ultra high speed and IP packet transmission with reduced delay to meet a variety of requirements derived from the two-way enhanced reality communications such as 3D-audio, 3D-video, and biological information media world .We can say that the day is not far away when every existing communication system will be wiped away by the 4G Communication System.
4-G system is not going to be introduced over night as it’s in its developmental stage yet. This system shouldn't be treated as something totally new or alien to the users as it has been a result of gradual progression of the previously and presently used communication systems. We can see a marvelous growth in mobile communication systems since the last two decades of 1900s.Digital services started replacing the analog ones. But need for efficient data Transfer had made the users unsatisfied with. The data rates worsen under certain conditions like bad weather or or in case of busy network so these disadvantages gave way to new technologies which have come into picture now. The first is 2.5G (GPRS) technology which allows data transfer at a faster rate than GSM . Further enhancements to GSM networks are provided by Enhanced Data rates for GSM Evolution (EDGE) technology providing up to three times the data capacity of GPRS .There after 3G (WCDMA/UMTS) technology has come into existence with the maximum data transfer rate of 2Mbps. But the 4th Generation system is ensuring a distinctively higher rate of data transfer, that would be ranging from 100 Mbps to 1Gbps .
Alvin Toffler has once said “ The future always comes too fast,.” This is evident from the evolution of communication system . The 4G technology will be able to support Interactive services like Video Conferencing, ultra-broadband Internet access, IP telephony, gaming services, and Wireless Internet. This system is also a step towards providing services a very less cost. This would be made possible by higher Bandwidth.
The networks will be all IP networks based on IPv6. Improved access technologies like OFDM and MC-CDMA (Multi Carrier CDMA) will likely to be used.
Another remarkable feature of 4G system is its security features which can make data transfer more reliable and safe. Security features will be much better to provide a comprehensive and secure all-IP based mobile broadband solution to smart phones, laptop computers,wireless modems and other mobile devices. More efficient algorithms at the Physical layer will reduce the Inter-channel Interference and Co-channel Interference.
The 4G system's objectives include its latent applications and system requirements, technical challenges, and related standardization activities. It has been revealed that the major capability of the 4G system should be its ultra high speed and IP packet transmission with reduced delay to meet a variety of requirements derived from the two-way enhanced reality communications such as 3D-audio, 3D-video, and biological information media world .We can say that the day is not far away when every existing communication system will be wiped away by the 4G Communication System.
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