Effects of Dynamic Scheduling of Internet Traffics on Multimedia Application Performance

Mohammed, Hanaa; Attiya, Gamal; El-Dolil, Samy

doi:10.21608/mjeer.2017.63635

Effects of Dynamic Scheduling of Internet Traffics on Multimedia Application Performance

Document Type : Original Article

Authors

¹ Dept. of Electronics & Electrical Communications Engineering, Faculty of Engineering, Tanta University, Egypt.

² Faculty of Electronic Engineering, Menoufia University, Egypt

10.21608/mjeer.2017.63635

Abstract

^{Over the last few years computer networks have experienced}^{an explosive growth, causing congestion collapse problem,}^{where no data transfers through the network, the throughput}^{drops to zero, the response time tends to infinity, and as a result}^{causing performance degradation. Congestion is handled at the}^{end systems using end-to-end congestion control protocols,}^{and at the network routers using network-assistant congestion}^{control strategies, active queue management techniques (AQM)}^{for example. Differ from data applications which built on top of}^{transmission control protocol (TCP), most real-time traffics,}^{have been built on top of unreliable connectionless user}^{datagram protocol (UDP), such as voice-over-IP or streaming}^{video over the Internet, since real-time applications can accept}^{loss more than delay and jitter. Buffer control techniques are}^{used to manage the queue size, and to enforce approximate}^{fairness among a large number of different internet flows by}^{queue management and scheduling disciplines. In this paper a}^{new class-based dynamic scheduling technique is proposed.}^{With this proposed technique, quality of service (QoS)}^{requirements can be provided for multimedia video and audio}^{traffic as same as that for the best-effort TCP-based data traffic}^{applications. Using the network simulator NS-2 the proposal is}^{compared with the most well-known scheduling approaches.}

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