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4G Wireless Networks
The world has experienced great development when it comes to telecommunication and data transfer. This has led to the emergence of the 4G and the 3G networks. The 4G network is a wireless data transfer technology that has found many applications in the market.4G means fourth generation and it is the fastest internet technology. The 4G network is the successor of the 3G network.4G technology provides faster data transfer than the 3G technology. The 3G technology provide data speeds of about 3.1mbps while the 4G technology has a data transfer rate of up to 12mbps.this means that the 4G network provide faster internet than the 3G.Another difference between these two technologies is that in 3G networks packet data switching technology is used. On the other hand the 4G network uses a technology that is a combination of both the packet data switching and message switching.
In terms of architecture the 3G network has a configuration that is wide area cell based. This contrasts to the 4G that uses integration of a Wireless Local Area Network and Wide Area Network. Correction of errors was hugely taken into consideration in the design of both the 4G and the 3G networks (Sauter & Germany, 2009). The 3G network uses turbo codes in the correction of errors in the network. On the other hand, the 4G network has incorporated the use of concatenated codes in the process of error correction. This has made it more effective in correcting error than the 3G network.
The operating frequency of a 3G network is about 2.0GZ which is lower than that of the 4G network that operate with frequencies of up to 8GHZ.The 4G networks are therefore more preferred by the consumers since they offer faster internet access s and data transfer rates.4G networks have found applications in the WiMax LTE. The 3G network was used mainly in EDGE and UMTS (Sauter & Germany, 2009).
4G LTE, 4G WiMax, and 4G Wi Bro networks are fourth generation networks that have been developed to facilitate data transfer by means of use of latest data network standards.LTE means long term evolutions and this is an easily deployable fourth generation network that provides faster data transfer and download speed. This technology has developed from GSM to HSPA and finally 4G.
The 4G LTE is a wireless standard that has been used widely in phone data transfer providing a data transfer rate of up to 100mbps.This technology is backward compatible and can therefore allows switching back to the HSPA and EDGE technology. This has made it a popular product in the data transfer field. WiMax refers to a Wi-Fi based wireless technology that is configured using the EEEE802.15 standard. It therefore has improved spectral efficiency. In addition to that, Wimax is able to attain higher standards of signal capacity and latency hence making it widely applicable to various systems. Wi-Bro is another 4G network that was developed in Korea. It stands for Wireless Broad band and it allows for faster data. Wi-bro operates at a data rate that is near that of the WiMax. Unlike the LTE, WiMax is not backward compatible and therefore it does not allow for compatibility with older data transfer technologies.
The ability of the LTE to be compatible with EDGE and HSPA has enabled its applications to be popular in many areas.
Since WiMax is Wi-Fi based, it does not require a sim card to function and this makes its application and usage more open. On the other hand, LTE needs a sim card to operate. This ther.............
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