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Talk · International CSI Computer Conference · October 1, 2009

A novel approach towards QoS provisioning in delay-sensitive flows over wireless networks

Mohammad Hajiesmaili, Aresh Dadlani, Nasser Yazdani, Ahmad Khonsari

Aresh Dadlani
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Abstract

Wireless networks are poised to support a myriad of existing as well as emerging multimedia streaming applications. With increase in use of wireless local area networks (WLANs), ranging from simple data transfer to bandwidth-intense, delay-sensitive, and loss-tolerant multimedia applications, issues regarding quality of service (QoS) have become a major research endeavor. Several challenges posed by robust video streaming over 802.11 WLANs include coping with packet losses caused by network buffer overflow, link erasures, or deadline misses. A major observation is that the retry limit settings of the MAC layer can be optimized in a way such that the overall packet loss caused by link erasure, buffer overflow, or deadline miss is minimized. In this paper, we propose a novel solution for minimizing packet loss in multimedia applications over WLANs. Simulation results justify the improved quality of the received video based on our proposed approach.

Wireless Networks and ProtocolsNetwork Traffic and Congestion ControlAdvanced Wireless Network Optimizationquality of servicewireless local area networkspacket loss reduction

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