The MIIS Eprints Archive

Throughput of ADSL Modems

=, = (1998) Throughput of ADSL Modems. [Study Group Report]



This paper considers the throughput of ADSL (Asymmetric Digital Subscriber Line) modems, used for high speed data transmission over relatively unreliable connections, e.g., copper telephone wires. The modem technique uses an error correcting code and interleaving. The settings include a grouping factor S which affects the amount of data per code word, the number of redundant bytes per code word (R) and the interleave depth D. The influence of these parameters on both the effective data transmission rate and the resulting error rate in the received signal are determined for two error situations: random errors and burst of errors. An approximate analysis for the random error case of the throughput of a TCP (Transport Control Protocol) connection using an ADSL modem shows that maximum throughput is obtained for the highest values of S and R.

Item Type:Study Group Report
Problem Sectors:Information and communication technology
Study Groups:European Study Group with Industry > ESGI 33 (Leiden, Netherlands, Sep 14-18, 1999)
ID Code:293
Deposited By: Dr Kamel Bentahar
Deposited On:12 May 2010 17:33
Last Modified:29 May 2015 19:54

Repository Staff Only: item control page