Video Broadcasting Using Queue Proportional Scheduling | Zendy

Dimitris Toumpakaris | Zendy; Stavros Kotsopoulos | Zendy

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Video Broadcasting Using Queue Proportional Scheduling

Author(s) -

Dimitris Toumpakaris,

Stavros Kotsopoulos

Publication year - 2007

Publication title -

advances in multimedia

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.278

H-Index - 17

eISSN - 1687-5699

pISSN - 1687-5680

DOI - 10.1155/2007/71458

Subject(s) - computer science , scheduling (production processes) , queue , markov chain , real time computing , network packet , broadcasting (networking) , gaussian , computer network , mathematical optimization , mathematics , physics , quantum mechanics , machine learning

Queue Proportional Scheduling (QPS) has been shown to be throughput optimal for Gaussian Broadcast Channels. This paper examines the use of QPS for Video Broadcasting. First, the behavior of QPS is examined as the scheduling frequencyis reduced and a method is proposed that uses statistics on the arrival rates to improve its performance. The reduction of the scheduling frequency simplifies the scheduler and decreases the required operations. Then, the packet delay variation is modeledusing a Markov Chain approach leading to a method for approximating the packet delay distribution. Based on the resulting distribution, it is discussed how the video encoding rate can be chosen in order to reduce the expected distortion of streams transmitted through Broadcast Channels

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