802.11e EDCA Parameter Optimization Based on Synchronized Time
نویسندگان
چکیده
IEEE 802.11 based wireless Local Area Networks (WLANs) are fast becoming the standard in homes, businesses, and public hotspots. As well as supporting conventional Internet applications such as email, file transfer and web access, WLANs are increasingly required to support Quality of Service (QoS)-centric applications such as Voice over IP (VoIP) and Video over IP, which are delay sensitive and require a certain level of throughput. This creates an urgent need for supporting QoS in 802.11-based WLANs. Whilst 802.11e goes some way towards meeting this need, severe congestion leading to unacceptable delays and packet loss can still occur. In this paper, we outline our plans to investigate how synchronized time implemented in end terminals can aid in optimizing 802.11e parameters to improve QoS for VoIP. Testing will be done using a combination of simulation using the NS-2 network simulator, with a practical test bed to back up our research.
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