Title :
Jitter reduction in ATM networks
Author :
Gonzales, Jonathan ; Le Meur, Jean-Paul
Author_Institution :
CNET, Lannion, France
Abstract :
Waiting time jitter is one of the main problems encountered in ATM (asynchronous transfer mode) networks, as its amplitude (after filtering) can exceed that permitted by current standards. A method for reducing jitter is presented which consists in transmitting the phase information from the plesiochronous source measured by a reference clock. This information is protected against transmission errors and cell loss. It is shown that it is possible to conform to CCITT recommendation G.823 for all plesiochronous rates of the 2-Mb/s hierarchy defined in recommendation G.702 by using as the reference clock either the 2-MHz synchronization network or the future 155-MHz network provided by the synchronous systems (synchronous digital hierarchy)
Keywords :
digital communication systems; filtering and prediction theory; synchronisation; telecommunication networks; time division multiplexing; 155 MHz; 2 MHz; 2 Mbit/s; ATM networks; CCITT recommendation G.823; SDH; asynchronous transfer mode; cell loss protection; jitter filtering; jitter reduction; phase information; plesiochronous rates; plesiochronous source; recommendation G.702; reference clock; standards; synchronization network; synchronous digital hierarchy; synchronous systems; transmission error protection; waiting time jitter; Ambient intelligence; Clocks; Filtering; Filters; Frequency; Intelligent networks; Jitter; Phase measurement; Protection; Shape;
Conference_Titel :
Communications, 1991. ICC '91, Conference Record. IEEE International Conference on
Conference_Location :
Denver, CO
Print_ISBN :
0-7803-0006-8
DOI :
10.1109/ICC.1991.162373
