The performance of TCP/IP over ATM over an asymmetric digital subscriber line (ADSL) was investigated. Because the bandwidth of an ADSL link can vary over time due to changes in the link’s physical conditions, which degrades TCP performance, we performed simulations for various ATM traffic controls, including available bit rate (ABR) and generic flow control, used to handle variations in the AD...

Asymmetric digital subscriber line (ADSL) is the latest copper-wire access technology that has the capability to deliver data rate up to 8 Mbps in downstream and up to 640 kbps in upstream. The ADSL Forum has also defined the model for ADSL/ATM connections. ADSL can be connected to ATM core network through the access network called digital subscriber line access multiplexer (DSLAM). This paper ...

We propose using punctured convolutional code for a Discrete Multitone (DMT) Asymmetric Digital Subscriber Line (ADSL) system to improve the data rate performance of ADSL. The theoretical performance of the systems with single coding rate for all subchannels, and with adaptive coding rate for each subchannel are presented respectively. It is found that the data rate performance of the proposed ...

This document reports on performance of a splitterless "V/ADSL" system that uses DMT with 4.3125 kHz wide tones over the band from DC to 5 MHz. Asymmetric 26/3.2 Mbps V/ADSL service reaches over 3000 feet, while symmetric service at 6.5 Mbps and 3.2 Mbps reaches are 3000 to 6000 feet for the conventional (or digitally duplexed) DMT. These ranges are maintained even in the presence of bridged-ta...

Adenylosuccinate lyase (ADSL) deficiency (MIM 103050) is an autosomal recessive inborn error of purine synthesis characterized by the accumulation in body fluids of succinylaminoimidazolecarboxamide (SAICA) riboside and succinyladenosine (S-Ado), the dephosphorylated derivatives of the two substrates of the enzyme. Because ADSL-deficient patients display widely variable degrees of psychomotor r...

the increase in the number of adsl users over recent years has encouraged different companies to enter to this context. for this reason, the current article aims to study internet adsl users’ characteristics that affect their usage rate as one of the factors of organization’s achievement. therefore, the data were collected using simple random method and questionnaire, the validity and reliabili...

This paper presents a novel architecture for Home Automation Networks management through high speed Internet connections ensuring QoS support. These connections can be ADSL links, an emerging technology which provides the user of the local loop with broadband speeds. So, a remote end-user who manages a Home Automation Network can use an ADSL connection to assure the real-time transmission of im...

This paper covers access network performance analysis by deploying ATM over ADSL within Telecom Italia experimental department “EXANET” (Experimental ATM Network). In this scenario, data traffic leaves customer site as ATM traffic running over ADSL modem links, gets aggregated via DSLAM (DSL Access Multiplexer) at the central office (CO) and then dropped onto the high-speed ATM switching fabric...

This paper discusses a novel architecture for remote Home Automation Networks e-Services on an OSGi platform via high speed Internet connections ensuring QoS support. These connections can be ADSL links, an emerging technology which provides the user of the local loop with broadband speeds. Since ADSL is a technology in the local loop, the presence of a signaling mechanism based on RSVP is nece...