This paper appears in: Communications Magazine, IEEE
Publication Date: Jun 2000
Volume: 38,
Issue: 6
On page(s): 150-154
ISSN: 0163-6804
References Cited: 8
CODEN: ICOMD9
INSPEC Accession Number: 6619229
Digital Object Identifier: 10.1109/35.846087
Posted online: 2002-08-06 23:17:50.0
Abstract
Local multipoint distribution systems (LMDS) represent a new
radio-based access technology with cellular architecture offering
flexible high-capacity connections to private users and organizations.
The systems employ a point-to-multipoint broadcast downlink with a total
capacity of 36-38 Mb/s per transport stream, giving high flexibility for
inclusion of any type of data. The interactive channel, being a
point-to-point connection, may employ different technologies depending
on availability and user demand for capacity. This capacity may
basically range from a few kilobits per second up to at least 25.6 Mb/s.
LMDS performance relative to other broadband access technologies is
discussed. A major remaining development task is the establishment and
verification of methods for coverage of normally shielded areas. The
availability of cheap repeaters and possibly reflectors for increased
coverage is a must, which will significantly improve coverage. The LMDS
technology, now in its first stage of implementation, is expected to
enhance development of broadband services such as e-commerce and
tele-teaching
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