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 ?
Alcatel LMDS is a fixed broadband wireless network that operates in spectrum bands above 10 GHz and can be quickly deployed, enabling service providers to cost-effectively deliver high speed Internet, data, and voice services to business customers.
Operating at the 29GHz frequency means that LMDS service providers already licensed at 29GHz can install a WIN-129 system, turn it on and start generating additional revenue dollars immediately, without the delays associated with obtaining additional operating licenses from the FCC.
* LMDS (local multipoint distribution service): providers use high frequency LMDS spectrum (28 GHz to 39 GHz) to offer high-speed broadband solutions.
Raytheon Company's RF Components Division (RRFC) has announced the introduction of a 23 GHz to 26 GHz GaAs MMIC diode mixer for millimeter wave chipset applications including point to point/multipoint and LMDS functions.
The study also uncovers specific deployment barriers for 802.11, MMDS (Multichannel Multipoint Distribution Service), and LMDS (Local Multipoint Distribution Service) systems, as well as the reasons current users selected the technologies, their current satisfaction levels, and plans for future deployment.
offered journalists a brief on the status of the company's current trials of its fixed wireless broadband access technology (sometimes referred to as Local Multipoint Distribution Services, or LMDS, in the consumer market).
It is interoperable with leading ATM network access equipment, providing a straightforward method for adding powerful voice/data service bundles to existing DSL, SDH and wireless LMDS infrastructures, specifically targeted at the business customer segment.
The report takes an in-depth look at the Unlicensed, MMDS, and LMDS bands and the external and internal competing technologies in the US broadband access markets such as Fiberless Optics, 3G, broadband access via satellite, xDSL, cable modem, and FTTC.
As Taiwan prepares to issue competitive local exchange carrier (CLECs) licenses in early 2000, Hughes Networks Systems (HNS), a unit of Hughes Electronics Corporation, has conducted trials of its local multipoint distribution system (LMDS) product AIReach Broadband 9000, to confirm that LMDS systems can provide high-quality broadband access in the tropical rain zones typical in Southeast Asia.
Our products are used in two-way CATV hardwire systems as well as MDS, MMDS, and LMDS RF spectrums.
Outstanding issues include the bandwidth customers get in practice from cable or xDSL modems; interference in xDSL or telephony over cable retrofit; LMDS signal degradation in heavy rain; and line-of-sight problems (because buildings can obstruct signals) and inferior voice quality (with mobile phones) in fixed wireless.
Elsewhere, Radcliffe will work on (http://www.ibtimes.com/agents-shield-season-4-spoilers-what-lmd-finale-introduces-comic-book-robot-2370796) Life-Model Decoys (LMDs).