Paper Info
Title
Cross-layer analysis and design for multimedia services in IEEE 802.11 WLANs
Abstract
IEEE 802.11 Wireless Local Area Networks (WLAN) supply broadband data accesses and evolve a growing demand of multimedia services for mobile users. To provide quality of service (QoS) for multimedia applications in WLANs, it is important to analyze the performance of 802.11 Medium Access Control (MAC) protocols under varying heterogeneous channel conditions. In this paper, we focus on 802.11 WLANs which adopt the MAC protocol of Distributed Coordination Function (DCF), and provide performance analyses to show the interlayer effect of physical-layer (PHY) channel diversities on DCF protocol as well as the consequent impact on multimedia QoS at application (APP) layer. We then discuss some feasible crosslayer designs for overall optimizing QoS performance in 802.11 WLANs. We also take example of the QoS unfairness problem due to the interlayer impact of PHY channel diversities and illustrate a solution of our cross-layer approach.
Year
DOI
Venue
2008
10.1145/1506270.1506373
Mobility Conference
Keywords
Field
DocType
performance analysis,dcf protocol,multimedia application,phy channel diversity,mac protocol,cross-layer analysis,heterogeneous channel condition,overall optimizing qos performance,multimedia service,channel diversity,qos unfairness problem,data access,quality of service,wireless local area network,physical layer,multimedia
Mobile QoS,IEEE 802.11,Computer science,Quality of service,Computer network,Communication channel,Wireless Multimedia Extensions,Real-time computing,Distributed coordination function,Local area network,PHY,Multimedia
Conference
Citations 
PageRank 
References 
0
0.34
10
Authors
3
Name
Order
Citations
PageRank
Chiapin Wang111710.51
T. Lin272467.09
Po-Chiang Lin313910.26