This paper deals with the analysis of the multiplexing of shaped ON-OFF sources in an ATM environment. In particular. a Two Level Shaper, modulating the source output bit rate on the basis of the buffer occupancy level, is studied. A very accurate analytical model describing its behaviour is provided too. Such a model allows an accurate description of the shaper output flow. To evaluate the advantages coming from the shaper introduction an approximate analytical model of an ATM multiplexer, based on the fluid model, is also proposed. The accuracy of the analytical results has been largely investigated by means of a simulation approach. Numerical results show the effectiveness of the proposed shaping mechanism, in terms of number of multiplexed sources. Moreover. the criteria for the choice of the shaper parameters are established and discussed.
Analysis of Two Level Shaping for Multiplexing of ON-OFF ATM Sources / F., Bernabei; L., Gratta; Listanti, Marco; M., Testa. - STAMPA. - (1993), pp. 1380-1385. (Intervento presentato al convegno International Conference on Communications 1993 tenutosi a Geneva (CH) nel June 1993) [10.1109/ICC.1993.397515].
Analysis of Two Level Shaping for Multiplexing of ON-OFF ATM Sources
LISTANTI, Marco;
1993
Abstract
This paper deals with the analysis of the multiplexing of shaped ON-OFF sources in an ATM environment. In particular. a Two Level Shaper, modulating the source output bit rate on the basis of the buffer occupancy level, is studied. A very accurate analytical model describing its behaviour is provided too. Such a model allows an accurate description of the shaper output flow. To evaluate the advantages coming from the shaper introduction an approximate analytical model of an ATM multiplexer, based on the fluid model, is also proposed. The accuracy of the analytical results has been largely investigated by means of a simulation approach. Numerical results show the effectiveness of the proposed shaping mechanism, in terms of number of multiplexed sources. Moreover. the criteria for the choice of the shaper parameters are established and discussed.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
