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 h ....etc

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ADSL technology is asymmetric. It allows more bandwidth downstream -from an NSP s central office to customer site - than upstream from the subscriber to the central office. This asymmetry, companied with always-on access (which eliminates call setup), makes ADSL ideal for Internet/intranet surfing, video- on -demand, and remote LAN access. Uses of this application typically download much more information than they send. ADSL transmits more than 6 Mbps to a subscriber, and as much as 640Kbps more in both directions. Such rate expands existing ac ....etc

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I am an information communication engineering student from nigeria and I want to know more on this topic because i'm thinking of making it my final year project topic. ....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, itâ„¢s shown that a symmetrical multilevel inverte ....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 sp ....etc

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ADSL technology is asymmetric. It allows more bandwidth downstream -from an NSP's central office to customer site - than upstream from the subscriber to the central office. This asymmetry, companied with always-on access (which eliminates call setup), makes ADSL ideal for Internet/intranet surfing, video- on -demand, and remote LAN access. Uses of this application typically download much more information than they send.


ADSL transmits more than 6 Mbps to a subscriber, and as much as 640Kbps more in both directions. Such rate expands existi ....etc

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A Bidirectional Routing Abstraction for Asymmetric Mobile Ad Hoc Networks
Abstract:
Wireless links are often asymmetric due to heterogeneity in the transmission power of devices, non-uniform environmental noise, and other signal propagation phenomenon. Unfortunately, routing protocols for mobile ad hoc networks typically work well only in bidirectional networks. This paper first presents a simulation study quantifying the impact of asymmetric links on network connectivity and routing per ....etc

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presented by:
PARIK GARG


STUDY OF UNIAXIALLY ASYMMETRIC SEISMICALLY ISOLATED RC BUILDING
Need for seismic isolation of a Structure
Increased building safety and post earthquake operability are desired.
Reduced lateral design forces are desired.
Alternate forms of construction with limited ductility capacity (such as pre-cast concrete) are desired in an earthquake region.
An existing structure is not currently safe for earthquake loads.
RB(Laminated Rubber Bearing)System
LRB Lead Rubber Bearing System ....etc

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Multipath Distance Vector Zone Routing Protocol for Asymmetric Mobile Ad-Hoc Networks
Abstract—
Most of the ad hoc routing protocols assume that all wireless networks aresymmetric (bidirectional links). In reality any practical network has some links may beunidirectional and hence the network is asymmetrical rather than symmetrical. The presenceof such links can reduce the performance of the existing protocol and could lead to networkclogging. In this paper we introduce a Multipath Distance Vector Zone R ....etc

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Prepared by:
Manoj Kumar
Piyush Mishra




What Is ADSL
ADSL – Asymmetrical Digital Subscriber Line, is a broadband communication technology that creates high-speed access to the Internet and remote networks using the phone lines that are already present in your home. ADSL is superior to analog modems in many respects.
Introduction
ADSL is a form of DSL, a data communications technology that enables faster data transmission over copper telephone lines

ADSL is capable of provi ....etc

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