Title :
Multiservice call blocking approximations for virtual path based ATM networks with CBR and VBR traffic
Author :
Siebenhaar, Rainer
Author_Institution :
Lehrstuhl fur Kommunikationsnetze, Tech. Univ. Munchen, Germany
Abstract :
The exact calculation of call blocking probabilities for multiservice ATM networks with alternate or adaptive routing for virtual channels (VC) is hardly possible. Therefore the paper presents and investigates the equivalent single path model as an approximation to omit the VC routing algorithm in the calculation. The model can be applied to ATM networks with several direct virtual path connections between each node pair. Further different methods to calculate the multiservice call blocking probabilities are reviewed and compared. A new approximate method is presented for networks, where the trunk reservation fairness mechanism is applied. This method is accurate, fast and may also be used for noninteger capacities and bandwidth requirements, which is important for statistical multiplexing of variable bitrate traffic
Keywords :
asynchronous transfer mode; probability; telecommunication network routing; telecommunication traffic; CBR traffic; VBR traffic; adaptive routing; alternate routing; bandwidth requirements; constant bit rate traffic; equivalent single path model; multiservice call blocking approximations; node pair; noninteger capacities; probabilities; statistical multiplexing; trunk reservation fairness mechanism; variable bit rate traffic; virtual channels; virtual path based ATM networks; Asynchronous transfer mode; B-ISDN; Bandwidth; Bit rate; Probability; Resource management; Routing; Telecommunication traffic; Traffic control; Virtual colonoscopy;
Conference_Titel :
INFOCOM '95. Fourteenth Annual Joint Conference of the IEEE Computer and Communications Societies. Bringing Information to People. Proceedings. IEEE
Conference_Location :
Boston, MA
Print_ISBN :
0-8186-6990-X
DOI :
10.1109/INFCOM.1995.515891
