Broadband wireless access solutions based on OFDM access in IEEE802.16
Koffman, I.; Roman, V.
Communications Magazine, IEEE
Volume 40, Issue 4, Apr 2002 Page(s):96 - 103
Digital Object Identifier 10.1109/35.995857
Summary:Broadband wireless access is the most challenging segment of the
wireless revolution since it has to demonstrate a viable alternative to
the cable modem and DSL technologies that are strongly entrenched in the
last mile access environment. The Analysis, Research, and Consultancy
(ARC) Group forecasts that the fixed wireless deployments in both homes
and businesses will reach almost 28 million by 2005, with North America
and Western Europe accounting for 24 percent and 27 percent of these,
respectively. Whether the promise of BWA will materialize depends on its
appeal to telecom operators from the perspective of deployment
economics, where the critical factor is the ease of installation of
broadband wireless subscriber units. This ultimately leads to
nonprofessional installation of integrated all-indoor BWSUs.
Consequently the physical layer (PHY) has to mitigate the very tough
impairments that characterize these non-line-of-sight environments. In
this context we overview the work of the one of the IEEE 802.16 standard
subcommittee projects that deals with a BWA solution based on OFDM
access (OFDMA) aiming at the most challenging NLOS scenarios
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