Imagine a single wireless technology that can:
• make portable Internet a reality by extending public WLAN hotspots to
metropolitan area coverage for mobile data-centric service delivery,
• connect enterprises and residential users in urban and suburban
environments where access to copper plant is difficult,
• bridge the digital divide by delivering broadband in low-density areas.
Thanks to its innovative technology, WiMAX will offer broadband wireless
access at data rates of multiple Mbit/s to the end-user and within a range of
several kilometers. The same radio technology will also offer high-speed
data services to all nomadic terminals (laptops, PDAs, etc.) with an
optimized trade off between throughput and coverage. Ultimately it will
enable the "Portable Internet" usage replicating on the move the same user
experience as at home or at the office.
Given its huge benefits, WiMAX will develop as a powerful radio access
solution with many integration synergies in mobile or fixed network
architecture. WiMAX will also enable end-users to benefit from an "Always
Best Connected" experience when accessing their applications via the best
available network, at home, on the pause, or on the move. WiMAX
particularly fits in Alcatel's vision for a User-Centric Broadband World in
full complementarity with the other broadband access technologies: from
ADSL to UMTS and their evolutions towards higher speed and data
Broadband Wireless Access (BWA) has been serving enterprises and operators for
years, to the great satisfaction of its users. However, the new IP-based standard
developed by the IEEE 802.16 is likely to accelerate adoption of the technology. It
will expand the scope of usage thanks to: the possibility of operating in licensed and
unlicensed frequency bands, unique performance under Non-Line-of-Sight (NLOS)
conditions, Quality of Service (QoS) awareness, extension to nomadicity, and more.
In parallel, the WiMAX forum, backed by industry leaders, will encourage the
widespread adoption of broadband wireless access by establishing a brand forthe
technology and pushing interoperability between products.
The purpose of this White Paper is to highlight and assess the value of WiMAX as
the right solution to:
• extend the currently limited coverage of public WLAN (hotspots) to citywide
coverage (hot zones)
- the same technology being usable at home and on the move,
• blanket metropolitan areas for mobile data-centric service delivery,
• offer fixed broadband access in urban and suburban areas where copper quality is
poor or unbundling difficult,
• bridge the digital divide in low-density areas where technical and economic factors
make broadband deployment very challenging. In addition to these uses, this paper
will highlight other potential applications, such as telephony or an effective point-to
multipoint backhauling solution for operators or enterprises.
WHAT IS WIMAX?
WiMAX is a standards-based technology enabling the delivery of last mile wireless
broadband access as an alternative to wired broadband like cable and DSL. WiMAX
provides fixed , nomadic, portable and, soon, mobile wireless broadband
connectivity without the need for direct line-of-sight with a base station. In a typical
cell radius deployment of three to ten kilometers, WiMAX Forum Certified™
systems can be expected to deliver capacity of up to 40 Mbps per channel, for fixed
and portable access applications.
This is enough bandwidth to simultaneously support hundreds of businesses with T-1
speed connectivity and thousands of residences with DSL speed connectivity. Mobile
network deployments are expected to provide up to 15 Mbps of capacity within a
typical cell radius deployment of up to three kilometers. It is expected that WiMAX
technology will be incorporated in notebook computers and PDAs by 2007, allowing
for urban areas and cities to become "metro zones" for portable outdoor broadband
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