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Assignment 2 – 4g Wireless Networks

1832 words - 8 pages

Week 4 – Assignment 2 – 4G Wireless Networks
May 3, 2014

Compare and Contrast 3G Wireless Networks to 4G Networks
We can provide the pros and cons of 3G wireless networks versus 4G networks in four areas: service and application, network architecture, data throughput and user perceptions. Some examples of services offered by 3G wireless networks are CDMA2000, UMTS and EDGE along with a list of others while 4G networks offer Wimax2 and LTE-Advance. These programs entice users to get hooked to the new and ever changing faces of network technology. 3G opened a Pandora’s Box with applications allowing users to stream video and audio, video calling, video conferencing and other facets of ...view middle of the document...

This is a more reliable method than a wire-line transmission because there is less network downtime. The central office, in turn, connects the data using a wire-line network to the outside world.
Another difference is in the data throughput. The data throughput rate for 3G is up to 3.1 mbps with a bandwidth of 5 – 20MHz; while the data throughput rate for 4G networks is 3 to 5 mbps but potentially estimated at a range of 100 to 300 mbps with a bandwidth of 100MHz (or more). Many users are happy with their 3G wireless network service. It is readily available and competitive pricing have enabled millions of users to access mobile technology in ways they never imagined possible. However, 4G networks have had outages and complaints about coverage areas. The differences are definitely there between the two technologies but the users of today have only gotten a brief taste of the potential benefits of 4G service. The common users who only listen to music and watch the occasional video won’t be to swayed to evolve but the business mined tech savvy individual will be converting as fast as the technologies change. In the next few years, I expect to see a few changes in the 4G services being offered. I look for boosted app performance and capabilities, International 4G Roaming Agreements, Collaborative Network Contributions instead of strain and the end of flat rate data.
Distinguish between the 4G LTE, 4G WiMax, and 4G WiBro Networks
Since the birth of 4G networks, we have been given a variety of network choices: 4G LTE, 4G WiMax and 4G WiBro. The 4G LTE network stands for 4G Long Term Evolution. This is the 4G technology used by top mobile companies, like AT&T and Verizon. It supports data rate exchanges at speeds of 100 Mbps for downloads and 50 Mbps for uploads. 4G LTE services are definitely gaining a lot of mobile users in the consumer market today, but there have been some reports of poor connectivity and sometimes no connectivity at all. Most of the problems are away from the metropolitan areas where there are fewer 4G cell sites, like rural areas. However, just like anything else, time will show that this too will be a nonfactor.
Current mobile users understand that in order to have access to a 4G network, that user must have a 4G network enabled device. Devices have some limits with compatibility of networks when going for 3G to 4G but the real issue is backward compatibility. There is backward compatibility of LTE-Advanced with LTE. This basically means that an LTE terminal should be able to work in an LTE-Advanced Network and the same in reverse. LTE was designed to be reverse compatible with GSM and HSPA. Because of this design, if a piece of mobile equipment travels beyond the range of an LTE network, it can fall back on a 3G network if it has the required radio technologies. To us, this generally means that phone’s network will not roam (incurring out of network fees).
According to sources, on April 19th,...

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