Title: Enhanced low latency queuing algorithm with active queue management for multimedia applications in wireless networks

Authors: Rukmani Panjanathan; Ganesan Ramachandran

Addresses: School of Computing Science and Engineering, VIT University Chennai Campus, Vandalur-Kelambakkam Road, Melakottaiyur, Chennai, Tamil Nadu, 600127, India ' School of Computing Science and Engineering, VIT University Chennai Campus, Vandalur-Kelambakkam Road, Melakottaiyur, Chennai, Tamil Nadu, 600127, India

Abstract: Low cost broadband services used widely in the recent years increased the demand for multimedia applications. Many of these applications require different quality of service (QoS) in terms of throughput and delay. In the current resource constrained wireless networks, resource management plays a vital role. In order to handle the resources effectively and to increase the QoS, proper packet scheduling algorithms need to be developed. Low latency queuing (LLQ) is a packet scheduling algorithm which combines strict priority queuing (SPQ) to class-based weighted fair queuing (CBWFQ). In this paper, an enhanced low latency queuing (ELLQ) algorithm is proposed in which an additional SPQ is introduced along with the existing SPQ. Further, the QoS is improved by integrating congestion avoidance algorithm with ELLQ. Simulation results using the OPNET modeller show that the proposed algorithm outperforms the existing algorithm in terms of throughput and delay for the multimedia applications.

Keywords: low latency queuing; LLQ; random early detection; RED; multimedia applications; quality of service; QoS; packet scheduling algorithms; wireless networks; active queue management; strict priority queuing; congestion avoidance; simulation.

DOI: 10.1504/IJHPCN.2017.083197

International Journal of High Performance Computing and Networking, 2017 Vol.10 No.1/2, pp.23 - 33

Available online: 13 Mar 2017 *

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