Quality of Service for IEEE 802.11 Wireless Networks
Date Issued
2007
Date
2007
Author(s)
Lee, Jeng-Farn
DOI
en-US
Abstract
IEEE 802.11 WLANs with DCF is the dominant wireless medium due to its simple, robust and fast installation with minimum management and maintenance costs. However, it is still challenge to provide desired quality of services for different requirements of applications since DCF provides best effort service only. This calls for solutions to providing differentiated service and fairness resource allocation in resource sharing among mobile stations for IEEE 802.11 based wireless networks.
In this dissertation, we provide different quality of services to meet different service requirements for integrated applications, and fair resource allocation in IEEE 802.11 wireless networks. We first propose an IFS-based MAC-layer scheduling discipline to provide weighted fair service among stations in IEEE 802.11 DCF WLANs. Next, we propose a differentiated service model, which can provide both strict priority and weighted fair service among different ACs to meet the different QoS requirements in integrated networks, and a MAC-layer service discipline DS-EDCA to support the service model in IEEE 802.11e EDCA WLANs. Additionally, we propose a hierarchical link sharing model for WLANs to control the resource usages of downlink and uplink traffic. Last, we use the game theoretic approach to design a fairness mechanism for wireless multi-hop backhaul networks with selfish transit Access Point
In this dissertation, we provide different quality of services to meet different service requirements for integrated applications, and fair resource allocation in IEEE 802.11 wireless networks. We first propose an IFS-based MAC-layer scheduling discipline to provide weighted fair service among stations in IEEE 802.11 DCF WLANs. Next, we propose a differentiated service model, which can provide both strict priority and weighted fair service among different ACs to meet the different QoS requirements in integrated networks, and a MAC-layer service discipline DS-EDCA to support the service model in IEEE 802.11e EDCA WLANs. Additionally, we propose a hierarchical link sharing model for WLANs to control the resource usages of downlink and uplink traffic. Last, we use the game theoretic approach to design a fairness mechanism for wireless multi-hop backhaul networks with selfish transit Access Point
Subjects
無線網路
服務品質
公平
QoS
Quality of Service
WLANs
EDCA
Fair
Weighted Fair
Type
thesis
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