LMDS


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Related to LMDS: MMDS

LMDS

LMDS

(Local Multipoint Distribution Service) A digital wireless transmission system that works in the 28 GHz range in the U.S. and 24-40 GHz overseas. It requires line of sight between transmitter and receiving antenna, which can be from one to four miles apart depending on weather conditions. LMDS provides bandwidth in the OC-1 to OC-12 range, which is considerably greater than other wireless broadband services.

LMDS can be deployed in asymmetric and symmetric configurations. It is designed to provide the "last mile" from a carrier of data services to a large building or complex that is not wired for high-bandwidth communications. In areas without gas or steam pipes or other underground conduits, it is less costly to set up LMDS transceivers on rooftops than to dig up the ground to install optical fiber. See MMDS.


The "Last Mile"
LMDS and similar systems are used to span the last mile to the user's facilities. LMDS transmits at an extremely high data rate, but is limited to from two to four miles. MMDS, which operates at lower frequencies, can span 30 or more miles.
References in periodicals archive ?
In addition the company confirmed provisioning of the ATM mux and LMDS hub station is integrated in the same network management system, simplifying network management.
The company deployed LMDS in 1999 using equipment from Newbridge Networks, a company acquired by Alcatel in 2000.
Since launching commercial LMDS in July 2000, Korea's Hanaro Telecom has been using the Alcatel LMDS solution to offer high speed Internet service in densely populated regions across the country.
Table 1 lists the range of ETRE filter specifications at LMDS frequencies.
LMDS is a microwave-based access technology that allows operators to provide wireless broadband services to other operators, enterprises, buildings/campuses, as well as to mobile network backhaul traffic.
Ericsson has already delivered more than 45 commercial LMDS systems worldwide and its proven MINI-LINK point-to-point solution is deployed in more than 110 countries
After a complete review of LMDS products on the market, we see Ensemble's Fiberless system as the clear choice for CTC because of its unparalleled capacity and feature richness -- both critical elements in building a future-proof broadband network," said Delbert Wilson, CEO and general manager of Central Texas Telephone Cooperative Inc.
Synoptel's LMDS technology delivers large bandwidth capabilities, enabling a broad range of applications including simultaneous distribution of high-speed Internet, Voice over Internet Protocol ("VoIP"), public network access, on-demand video, interactive gaming, financial transactions, video streaming, remote security, distance learning and virtually any other high-speed data delivery.
LMDS offers the highest bandwidth with 1000 MHz, and has the capability to provide these services in addition to VoIP and high speed Internet.
WTS was granted a license to operate LMDS in Portugal in July 1999, and is currently competing for a DVB-T license to be granted in August 2001.
Andrew Corporation (NASDAQ:ANDW) introduced LMDS CPE (Customer Premises Equipment) antennas designed for broadband applications in the 27.
Although local multipoint distribution systems (LMDS) have been viewed as a promising alternative to fiber connections, the uptake of broadband services based on LMDS technology does not live up to expectations, according to the Yankee Group's upcoming Report, "LMDS in Asia-Pacific.