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Connection admission control with picture-type dependent effective bandwidths for VBR MPEG video traffic in ATM networks

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3 Author(s)
Byeong-hee Roh ; Dept. of Electr. Eng., Korea Adv. Energy Res. Inst., Taejon ; Hee-June Ahn ; Jae-Kyoon Kim

The I-picture starting time distribution of variable bit rate (VBR) MPEG video sources may significantly affect the cell loss characteristics of ATM multiplexers. The authors propose a new connection admission control (CAC) method which can reflect this effect. For CAC, VBR MPEG video traffic is modelled as a composite sequence of three subsequences with different effective bandwidths according to their picture coding types. Experimental results show that the proposed method can fully reflect this effect due to the starting time distribution while also improving network utilisation significantly

Published in:

Electronics Letters  (Volume:33 ,  Issue: 23 )