The possibility of low cost last mile connectivity along with the possibility of a system that could handle backhaul over a wireless link proved to be a compelling argument to develop a new wireless data link system. The The first These amendments addressed issues of radio spectrum and interoperability and came under the designations In September a major revision project was commenced.
It was also intended to incorporate conformance test specifications within the overall standard. The project was completed in and the standard was released as With the release of the Since its initial conception, new applications for WiMAX have been developed and as a result there are two "flavours" of WiMAX technology that are available:. The two flavours of WiMAX broadband technology are used for different applications and although they are based on the same standard, the implementation of each has been optimised to suit its particular application.
This article discusses an overview of a wireless broadband access technology namely WiMax. WiMAX communication system provides BWA broadband wireless access up to 50 kilometers for fixed stations and also for mobile stations from 5 to 15 km. WiMax replaces DSL services and cables by providing internet access universally. The architecture used in WiMax is the point to multipoint, which is an ideal technique for carriers to deliver broadband to locations wherever wired connections are costly and difficult.
The operation of WiMax is similar to WiFi, however at high speeds above larger distances for several users. This broadband wireless technology support video, voice, and voice as well as Internet data.
WiMax provides wireless broadband access to buildings, wired networks, rural otherwise populated regions. It connects WLAN hotspots toward the Internet and also it provides connectivity of broadband for mobile devices.
But what exactly is WiMax? And how does it fit into the future of wireless? Here's a primer to help you sort it out. Sprint was the first major carrier in the world to announce massive deployment of mobile WiMax in The company said it would use the technology to build a fourth-generation, or 4G, wireless network that would provide true wireless broadband.
But the hyped technology hasn't been without controversy. Fast forward to the present, and Sprint's former CEO Gary Forsee, who staked his reputation and ultimately his job on WiMax's success, was forced to resign after investors protested that the company needed to focus more on keeping current 3G customers instead of building a new 4G network.
Now, Sprint is waiting to spin off its WiMax assets into a joint venture with Clearwire to help ensure that its dream of a nationwide WiMax network is realized. In the meantime, it's moving forward with initial network deployments. And this week, it launched the first mobile WiMax network called Xohm in Baltimore. More cities will follow over the coming weeks and months. Next week, Sprint and its ecosystem of WiMax suppliers is planning a major coming out party for Xohm. With all the buzz swirling around WiMax , I thought it would be a good time for a little refresher on what the technology is and how it compares to existing technologies as well as other 4G technologies on the horizon.
What is WiMax? It's an IP-based wireless technology that can accommodate fixed, portable, and mobile usage models, according to the WiMax Forum. It's considered a promising next-generation wireless technology, because it supports high data rates and has a long transmission reach. Before it was standardized in , there were many non-standard versions of the technology being developed throughout the world, including Korea's WiBro technology.
What can WiMax be used for? The primary purpose of WiMax is to offer wireless broadband. Originally, it was used to provide broadband to places where there was no wired infrastructure. This is how most of the deployments throughout the world use the technology today. A mobile version of the technology was approved in by the IEEE standards body. Table 2. Table 3. WiMAX usage scenarios. Cellular Backhaul Majority of backhaul is done by leasing E 1 services from incumbent wire-line operators.
Some salient points about WiMAX use as cellular backhaul are: high-capacity backhaul; multiple cell sites are served; there is capacity to expand for future mobile services; It is a lower cost solution than traditional landline backhaul. Education Networks School boards can use WiMAX networks to connect schools and school board offices within a district, as shown Figure 6.
Campus Connectivity Government agencies, large enterprises, universities, and colleges, can use WiMAX networks to connect multiple locations, sites and offices within their campus, as shown in Figure 7. Rural Connectivity Service providers use WiMAX networks to deliver service to underserved markets in rural areas and the suburban outskirts of cities as shown in Figure 8.
Theme Parks Theme park operators can use WiMAX to deliver a broad range of communication services for their amusement parks, expositions, hospitality and operation centers, and buses and service vehicles, as shown Figure More Print chapter.
How to cite and reference Link to this chapter Copy to clipboard. Cite this chapter Copy to clipboard Frank Ibikunle December 1st Available from:. Over 21, IntechOpen readers like this topic Help us write another book on this subject and reach those readers Suggest a book topic Books open for submissions. More statistics for editors and authors Login to your personal dashboard for more detailed statistics on your publications. Access personal reporting. Nascimento and J.
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