Virtual Clock Scheduling Algorithm for Video Streaming

Abstract :-
Algorithms used for scheduling play a major role in providing quality of service in video streaming. This paper describes a simulation environment that has been designed combining network simulator ns2 with video codec to predict the quality of service. Virtual clock scheduling algorithm has been applied to evaluate the performance metrics and compared with the weighted round robin (WRR) and Deficit round robin (DRR) scheduling policies.

The development of video and multimedia applications enabled the users to handle large amount of visual
information contained in video images and also audio data. Efficient delivery of video data over computer networks has been studied for a long time. However, multi-receiver video delivery presents a challenge.

Video streaming refers to real-time transmission of video. There are two modes for transmission of video over the Internet. One is the download mode and the other is streaming mode. The former will download the entire video file and then plays back. Hence there is no real-time criticality.

Author:- Sankar.P and Chellamuthu .C


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