|Authors||I. Ahmed, L. Badia and K. Hussain|
|Title||Evaluation of Deficit Round Robin Queue Discipline for Real-Time Traffic Management in an RTP/RTCP Environment|
|Afilliation||Media, Communication Systems|
|Publication Type||Proceedings, refereed|
|Year of Publication||2010|
|Conference Name||IEEE European Modelling Symposium 2010 (EMS 2010), Pisa, Italy|
Multimedia real-time traffic is deemed to be dominant in future communication systems. One of the reference applications to support real-time traffic is the Real-time Trans- port Protocol (RTP), which can be used to transmit multimedia contents on real-time basis. At the same time, Real-time Transmission Control Protocol (RTCP) is used for receiving feedback and getting information about the network. This paper proposes and evaluates a traffic management implementation in such an RTP/RTCP environment for congestion control. Deficit Round Robin queue discipline is used as the traffic management strategy instead of Random Early Detection and DropTail queue disciplines. A simulation campaign was performed to analyze the effects of implemented traffic strategies in RTP/RTCP environment and compare it with previous solutions. The obtained results highlight a significant difference in terms of jitter delay and packet losses and improvement the bandwidth utilization for real-time flows. Thus, we are able to provide quantitative evidence of the importance of the queue discipline to efficiently manage multimedia content.