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The business of wimax - Pareek D.

Pareek D. The business of wimax - Wiley publishing , 2006. - 330 p.
ISBN-10 0-470-02691
Download (direct link): thebusinessof2006.pdf
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The next generation of mobile and wireless systems will more than likely converge and integrate architectural, network and application levels. The next-generation network needs to be all IP in order to deal efficiently with the traffic. The unification of 3G, wireless LANs and DSL systems, as well as other access technologies, will enable users to access common services using TCP/IP running over them.
2
WiMAX in Depth
The growing demand for broadband services on a global scale is incontestable. Businesses, public institutions and private users regard it as an enabling technology and it has become a requirement for delivering communications services in the Information Age. The desire for bandwidth-intensive Internet access and other voice and data services has never been greater across all geographies and market segments, despite the air of uncertainty in the global telecommunications industry.
The DSL market, based on a variety of wireline infrastructures, has succeeded in reaching millions of business and private subscribers and continues on a rapid growth curve. In last-mile markets, where traditional cable or copper infrastructures are saturated, outdated or simply out of reach, supplying the quick roll-out of infrastructure to the last mile has become a difficult and expensive challenge for carriers who cannot possibly keep pace with demand.
This has brought about a situation wherein subscribers living in developed areas with broadband-ready infrastructure can enjoy all the benefits of DSL services while those who do not require another technology solution. Broadband Wireless Access (BWA) technology fills this void admirably, providing highly efficient and cost-effective access services for millions of subscribers who would otherwise be left out of the loop (Figure 2.1).
2.1 WiMAX: BROADBAND WIRELESS ACCESS
Broadband wireless is a technology that promises high-speed connection over the air. It uses radio waves to transmit and receive data directly to
The Business of WiMAX Deepak Pareek 2006 John Wiley & Sons, Ltd
36
WiMAX IN DEPTH
USS Mbps
Figure 2.1 Cost and speed of access for different countries
and from the potential users whenever they want it. Technologies such as 3G, Wi-Fi, WiMAX and UWB work together to meet unique customer needs. BWA is a point-to-multipoint system which is made up of base station and subscriber equipment. Instead of using the physical connection between the base station and the subscriber, the base station uses an outdoor antenna to send and receive high-speed data and voice-to-subscriber equipment. This technology reduces the need for wireline infrastructure and provides a flexible and cost-effective last-mile solution (Table 2.1).
In current commercial deployments, broadband wireless networks deliver more bandwidth than traditional copper cables and exhibit a clear economical advantage over wireline alternatives in the last mile.
BWA offers an effective, complementary solution to wireline broadband, which has become globally recognized by a high percentage of the population. Technological improvements in the broadband wireless arena have been rapid and significant in recent years, offering operators greater performance and flexibility in their deployments while reducing their investment risks and ongoing operating expenses. Also, these technologies have been used for both commercial and residential application to solve connectivity needs. BWA thrives on an interoperability standard like any other segment of the information technology industry. A number of new wireless access technologies, and specifically the new WiMAX standard, fit this agenda perfectly.
Table 2.1 BWA development
2000 2001 2002 2003 2004 2005
Off-the-shelf 802.11 and proprietary Proprietary 70 + OEMs with equipment Standard-based solutions
solutions solutions
Spectrum: Spectrum: Harmonized IEEE 802.16a and ETSI
Licence exempt 2.4 GHz Licence exempt 2.4 and 5 x GHz HiperMAN standards
Licened MMDS and LMDS Licensed 2.5, 3.5, 10.5 GHz Spectrum:
<11 GHz licensed and licence-exempt
Data rate: 2-11 Mbps peak Data rate: 6-54 Mbps peak Data rate: up to 75 Mbps peak
Chip sets: use 802.11b, DOCSIS, Chip sets: custom MAC, 802.11 x PHY, Chip sets: volume 802.16a silicon
proprietary DOCSIS
Air interface: Standard air interface: interoperable,
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