4g Wireless Networks.

Topics: Mobile phone, WiMAX, 3GPP Long Term Evolution Pages: 5 (1946 words) Published: April 19, 2013
4G Wireless Networks

Compare and contrast 3G wireless networks to 4G networks in terms of: 3G and 4G wireless networks can be compared and contrasted by four areas of capabilities: Service and application, network architecture, data throughput and user perception. “Some examples of services offered by 3G wireless networks are CDMA2000 (also known as IMT MultiCarrier (IMTMC), Universal Mobile Telecommunications System (UMTS), and EDGE as well as a long list of others while 4G offer Worldwide Interoperability for Microwave Access (Wimax2) and Long-Term Evolution (LTE- Advance).” (Jamia Yant, 2012, April 26) 3G applications allows users the ability to stream video and audio, video conferencing as well as other multi-media applications within a mobile environment. 4G applications on the other hand offer gaming services, amended mobile web access, high definition mobile television, video conferencing, IP telephony and 3D television. The architecture between 3G and 4G are very different,3G mobile network uses a Wide Area Cell Based network with a circuit-switched subsystem and “3G networks rely on large satellite connections that are connected to telecommunications towers”. (Turban, E. and Volonino, L, 2011) 3G allows users to make calls or open the internet, through signals which are sent to 3G tower antennas or cell sites. The data travels from the cell site to a central switching office by a wire-fiber optic network. The central switching office then connects the call or data request with the rest of the world according to; (Jamia Yant, 2012, April 26) 4G networks are an integration of wireless LAN and Wide Area. What are significant about 4G networks is they don’t use circuit-switched subsystems such as 3G networks. 4G is based on a purely packed based internet protocol (IP) system. “Circuit switching is very old technology that has been used in telephone systems for a very long time and the downside of this technology is that it ties up the resources for as long as the connection is kept up. The efficiency of packaging switching allows the cell phone company to squeeze more conversations into the same bandwidth. 4G no- longer utilizes circuit switching for voice or video call, all information is passed around would be packet switched to enhance efficiency” (3G-vs- 4G Difference and Comparison, p3). The data throughput rate for 3G is up to 3.1 mbps with a bandwidth of 5-20 MHz, while the data throughput for 4G networks is 3-5 Mbps but is potentially estimated at a range of 100-300 Mbps with a bandwidth of 100 MHz or more. “Many users are happy with 3G wireless network service. It is readily available and has completive pricing which has enabled millions of users’ access to mobile technology in ways they never imagined possible. However, 4G networks have outages and complaints about coverage areas. The differences are there definitely 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 swayed to evolve, but the business mined tech savvy individual will be converting as fast as the technologies change”. (Jamia Yant, 2012, April 26) 4G LTE, 4G WiMax, and 4G WiBro Networks

4G wireless is the term used to describe the fourth-generation of wireless services. 4G technology is designed to deliver speed and there are three 4G systems that are commercially available LTE, WiMax, and WiBro. LTE or Long Term Evolution, has download speeds of 100 Mbps and can support upload speeds of 50 Mbps. User enjoy the fast download speeds, potentially better call quality, smoother streaming videos and faster webpage loading. Users have had issues with LTE outside of metropolitan areas because of fewer cell towers with 4G capabilities.  LTE is designed to be backward compatible with lesser networks. The means if a mobile device is not in the range of a LTE network, it can...
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