Title :
An ATM scheduler supporting all adaptation alternatives for real-time services
Author :
Pocher, HerveéLe ; Leung, Victor C M ; Gillies, Donald
Author_Institution :
Dept. of Electr. & Comput. Eng., British Columbia Univ., Vancouver, BC, Canada
Abstract :
This paper presents enhancements of the delayed frame queueing (DFQ) ATM transmission and multiplexing strategy to provide a wide range of explicit and nontrivial bounds for queueing jitter. This enables a wide range of adaptation alternatives for real-time ATM services such as voice over ATM. Network simulation results indicate that DFQ can offer a very tight jitter bound, not exceeding 1 ms, with no significant increase in cell loss compared to the case where a trivial jitter bound of 13 ms is guaranteed. We discuss many examples of how this has major implications on the preferred alternatives, chosen by clients, for implementing various network adapter functions such as source clock recovery for voice
Keywords :
asynchronous transfer mode; delays; digital simulation; jitter; packet switching; queueing theory; real-time systems; synchronisation; telecommunication networks; telecommunication services; voice communication; ATM multiplexing; ATM scheduler; ATM transmission; cell loss; delayed frame queueing; explicit bounds; jitter bound; network adapter functions; network simulation results; nontrivial bounds; queueing jitter; real-time ATM services; real-time services; source clock recovery; traffic integration; voice over ATM; Asynchronous transfer mode; Bit rate; Clocks; Delay; Design for quality; Jitter; Pulse modulation; Quality of service; Telecommunication traffic; Traffic control;
Conference_Titel :
Global Telecommunications Conference, 1998. GLOBECOM 1998. The Bridge to Global Integration. IEEE
Conference_Location :
Sydney,NSW
Print_ISBN :
0-7803-4984-9
DOI :
10.1109/GLOCOM.1998.775768
