Asymmetric Digital Subscriber Line (ADSL)

ABSTRACT

Asymmetric Digital Subscriber Line (ADSL) is a new modem technology that converts existing twisted-pair telephone lines into access paths for multimedia and high speed data communications. ADSL will play a crucial role over the next ten or more years as telephone companies enter new markets for delivering information at high speeds in various formats including video and multimedia formats. It has become the most familiar method of internet communication for hom ....etc

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Asymmetrical Digital Subscriber Line

1.Links subscriber and internet service provider only for residential users.

2.Uses existing local loops.

3.Uses currently installed twisted pair cable.

4.Can carry broader spectrum of 1MHz or more.

ADSL CONFIGURATION

The twisted pair local loop is actually capable of handling bandwidths up to 1.1Mhz, but the filter installed at the end office of the telephone company where each local loop terminates limits the bandwidth to 4Khz(for voice comm.). If the filter is removed the entire 1.1Mhz i ....etc

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Definition

The accelerated growth of content-rich applications that demand high bandwidth has changed the nature of information networks. High-speed communication is now an ordinary requirement throughout business, government, academic, and work-at-home environments. High-speed Internet access, telecommuting, and remote LAN access are three services that network access providers clearly must offer. These rapidly growing applications are placing a new level of demand on the telephone infrastructure, in particular, the local loop portion of ....etc

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ABSTRACT
ADSL
Assymetric Digital Subscriber Line

ADSL can practically transform the existing public information network from one limited to voice, text and low resolution graphics to a powerful, ubiquitous system capable of carrying multimedia, including full motion video, to everyone's home.
ADSL works by splitting the phone line into two frequency ranges. The frequencies below 4 kHz are reserved for voice, and the range above that is used for data.
ADSL provides always-on high-speed Internet ac ....etc

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please give me some information about emergency service for subscriber safety in tracking ....etc

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I have a project on the topic, for that i have to follow this code as base code.I don't have much time to write down all of the code.So please sent me all the codes ,folders and every related requirement.
My email id is [email protected]. ....etc

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Positioning a Mobile Subscriber in a Cellular Network System based on Signal Strength



INTRODUCTION

In positioning a mobile subscriber (Location
Tracking), a mobile user is provided with
information pertaining to its current position. It
is one of the popular areas of wireless
computing research. Researchers paid attention
to Positioning Systems after the Federal
Communications Commission (FCC), mandated
that all wireless carriers in the United States
must provide a certa ....etc

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Definition

The accelerated growth of content-rich applications that demand high bandwidth has changed the nature of information networks. High-speed communication is now an ordinary requirement throughout business, government, academic, and work-at-home environments. High-speed Internet access, telecommuting, and remote LAN access are three services that network access providers clearly must offer. These rapidly growing applications are placing a new level of demand on the telephone infrastructure, in particular, the local loop portion of ....etc

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This paper highlights some effects of an asymmetrical design on three phase multilevel inverters from a supply network point of view. The investigated topology is based on a series connection of single phase inverters (partial cell) in each phase. Each partial cell is fed through a three-phase diode rectifier for a unidirectional power flow, fed itself through the secondary of the power transformer (PT). From analytical relationships in continuous and discontinuous current conduction mode, it s shown that a symmetrical multilevel inverter has ....etc

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to get information about the topic Bi-directional routing abstraction for asymmetric mobile ad hoc network full report refer the page link bellow

http://seminarsprojects.net/Thread-a-bidirectional-routing-abstraction-for-asymmetric-mobile-ad-hoc-networks ....etc

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