Control analysis of video packet loss in ATM networks

Duan-Shin Lee; Kou-Hu Tzou; San-Qi Li

doi:10.1117/12.24198

1 September 1990 Control analysis of video packet loss in ATM networks

Duan-Shin Lee, Kou-Hu Tzou, San-Qi Li

Proceedings Volume 1360, Visual Communications and Image Processing '90: Fifth in a Series; (1990) https://doi.org/10.1117/12.24198
Event: Visual Communications and Image Processing '90, 1990, Lausanne, Switzerland

Abstract

In this paper we will study the video packet loss due to excessive queueing delay in a single statistical multiplexer. Because of the real time nature of video service, packets exceeding a time constraint will be declared lost at the destination. Any packet arriving during the period when the queue length exceeds the threshold determined by the time constrain will be dropped at the destination. Thus, packet losses occur in clusters. We measure the quality of the received pictures by the expected underload period and the expected number of high priority arrivals during an overload period. The former quantity measures the frequency of packet dropping due to excessive delay, while the later is an indicator of the picture area affected. We analyze and compare two system schemes, where the first scheme drops late packets only at the destination and the second one blocks arrivals in front of the multiplexer once the packets exceed the permissible delay. Comparison of the two system schemes based on the two measurements mentioned above indicates that the second scheme is superior to the first one. In order to further improve the video service quality, a simple congestion control based on the dynamics of queue length is proposed. Our analysis shows that the proposed control scheme significantly extends the expected underload period.

Citation Download Citation

Duan-Shin Lee, Kou-Hu Tzou, and San-Qi Li "Control analysis of video packet loss in ATM networks", Proc. SPIE 1360, Visual Communications and Image Processing '90: Fifth in a Series, (1 September 1990); https://doi.org/10.1117/12.24198

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