Priority-based scheduling scheme for live video streaming in peer-to-peer network

The P2P networks play a crucial role in communication and data transfer. During recent years the importance of P2P network is increasing due to its scalability and an easy cost-efficient model. From the last few years, a P2P network has also been playing a significant role in real-time data transmission. The features offered by P2P network for video on demand/ live video streaming are getting popular day by day. The key factors which affect the performance of the P2P network are Scheduling and Overlay. Scheduling schemes like push-based, pull-based scheduling schemes that can be further classified into FCFS, rarity based and deadline based scheduling schemes are not sufficient to fulfill the demand of P2P network. So in this paper, we have defined two new scheduling schemes which overcome the shortcomings of the existing schemes. These are priority based scheduling schemes which calculate the priority by combining the different factors which directly affect the performance of a network. This approach is a combination of priority based chunk selection and bandwidth aware peer selection mechanism, which improves the delay between the peers. A comparative analysis of the new priority-based scheduling scheme is done with previous approaches. The simulation results are shown in this paper verify the approach and depict that performance of network and quality of video receiver is improved with the use of priority based scheduling scheme. Performance analysis of scheduling schemes is evaluated using parameters like startup delay, end-to-end delay, playback delay, and frame redundancy, and for the quality of video the distortion, frame loss ratio of video parameter is used.