Service-Oriented QoS Guarantee Based on Access Category Traffic

Abstract:

Due to the further development in recent years, VoWLAN(VoIP over Wireless LAN) will achieve convergence with other service inevitably and has a higher requirement for network performance. Service focused on the whole converged network is different, so the measure of network status has different demands, we should set parameters reasonably and make it adaptive network in order to realize the optimization of network performance according to the current channel load level and distribution of service condition. Therefore, we can adjust the Contention Window(CW) dynamically, according to the slot utilization rate to estimate the channel load and the concept of backoff discontinuation rate. Simulation results prove that this scheme is simple and effective, largely improved QoS performance of the throughput and delay of each service.

• Periodical: Applied Mechanics and Materials (Volumes 475-476)
• Pages: 856-862
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.475-476.856
• Online since: December 2013
• Authors: Wei Zhang*, Li Li Chu, Peng Wang, Ren Gang Yuan
• Keywords: CW Adjusting Dynamically, EDCA, Quality of Service (QoS), Voice over IP (VoIP)

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