Improving Internet Quality of Service through Active Queue Management in Routers
The traffic characteristics of real-time and non real-time applications require a certain Quality of Service (QoS) from the Internet in terms of bandwidth, delay, packet loss, fairness and jitter. However, most of the current Active Queue Management (AQM) algorithms at the internet routers do not guarantee QoS for real time traffics such as video and audio. This is because; most of the algorithms handle different packets of different traffics by the same strategy. In this paper, we propose a new AQM strategy to guarantee QoS for real time traffics. The proposed strategy uses three queues at the internet routers, each of which handles a single class of traffic. Where, the arriving packets are queued according to their class type. Additionally, the queued packets are scheduled according to a predefined weight. The proposed algorithm is evaluated and compared with the most recent algorithms by using the Network simulator NS-2.
Keywords: Active Queue Management, Packet Scheduling, QoS, Multimedia, Congestion Control
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ABOUT THE AUTHORS
Gamal Attiya
Gamal Attiya graduated in 1993 and obtained his MSc degree in computer science and engineering from the Menufiya University, Egypt, in 1999. He received PhD degree in computer engineering from the University of Marne-La-Vallée, Paris-France, in 2004. He is currently Lecturer at the department of Computer Science and Engineering, Faculty of Electronic Engineering, Minoufiya University, Egypt. His main research interests include distributed computing, task allocation and scheduling, computer networks and protocols, congestion control, QoS, and multimedia networking.
Heba El-Khobby
Heba A. El-Khobby graduated in 1998 and received her M.Sc and PhD degree from the Tanta University, Egypt, in 2003 and 2009 respectively. She is currently a Lecturer at the Department of Electronics and Electrical Communications Engineering, Tanta University, Egypt. Her research interests are in the field of computer networks including congestion control, routing, mechanisms for resource management and QoS.
Gamal Attiya
Gamal Attiya graduated in 1993 and obtained his MSc degree in computer science and engineering from the Menufiya University, Egypt, in 1999. He received PhD degree in computer engineering from the University of Marne-La-Vallée, Paris-France, in 2004. He is currently Lecturer at the department of Computer Science and Engineering, Faculty of Electronic Engineering, Minoufiya University, Egypt. His main research interests include distributed computing, task allocation and scheduling, computer networks and protocols, congestion control, QoS, and multimedia networking.
Heba El-Khobby
Heba A. El-Khobby graduated in 1998 and received her M.Sc and PhD degree from the Tanta University, Egypt, in 2003 and 2009 respectively. She is currently a Lecturer at the Department of Electronics and Electrical Communications Engineering, Tanta University, Egypt. Her research interests are in the field of computer networks including congestion control, routing, mechanisms for resource management and QoS.
