Title :
A prediction based UPC mechanism for VBR video traffic
Author :
Garroppo, R.G. ; Giordano, S. ; Miduri, S. ; Russo, F.
Author_Institution :
Dept. of Inf. Eng., Pisa Univ., Italy
Abstract :
Preventive actions have to be used to avoid congestion in ATM networks. These actions are represented by call admission control (CAC) and usage parameter control functions (UPC). Two UPC algorithms are compared and an enhancement of the leaky bucket mechanism is presented. The comparison is based on the results of several trace driven simulations. The simulations, realised on a CAMAD tool, are driven by MPEG1 video traces as input traffic. The effectiveness of the proposed algorithm has been evaluated in terms of response time and transparency. These performance indexes have been obtained considering the number of non-conforming cells and the mean value of the conforming cells path
Keywords :
asynchronous transfer mode; digital simulation; prediction theory; telecommunication congestion control; telecommunication networks; telecommunication traffic; visual communication; ATM networks; B-ISDN; CAMAD tool; MPEG1 video traces; UPC algorithms; VBR video traffic; adaptive predictor; call admission control; conforming cells path; input traffic; leaky bucket mechanism; mean value; nonconforming cells; performance indexes; prediction based UPC mechanism; response time; trace driven simulations; transparency; usage parameter control; Asynchronous transfer mode; B-ISDN; Bit rate; Call admission control; Communication system traffic control; Counting circuits; Delay; Quality of service; Telecommunication traffic; Traffic control;
Conference_Titel :
Communications, 1998. ICC 98. Conference Record. 1998 IEEE International Conference on
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-4788-9
DOI :
10.1109/ICC.1998.685184
