Providing Quality-of-Service Guarantees in Wireless Networks

Providing quality of service (QoS) guarantees is animportant objective in the design of thenext-generation wireless networks. In this book, weaddress the QoS provisioning problem from both thenetwork and the end system perspectives. In thefirst part of the book, we investigate the problemof statistical QoS provisioning from the networkperspective. We propose and develop a link-layerchannel model termed the effective capacitymodel. The effective capacity model captures theeffect of channel fading on the queueing behavior ofthe link, using a computationally simple yetaccurate model, and thus, is the critical device weneed to design efficient QoS provisioningmechanisms. We call such an approach to channelmodeling and QoS provisioning, as effective capacityapproach. With the effective capacity approach, weobtain link-layer QoS measures for variousscenarios. In the second part of the book, we focusour attention on QoS support from the end systemperspective, and present our adaptive QoS controlapproach for real-time video communication overwireless channels.

Autorentext

Dr. Dapeng Wu is Associate Professor of Department of Electrical and Computer Engineering at University of Florida, Gainesville, Florida, USA. His research interests are in the areas of networking, communications, signal processing, computer vision, and machine learning. He received ONR YIP award in 2008 and NSF CAREER award in 2007.

Klappentext
Providing quality of service (QoS) guarantees is an important objective in the design of the next-generation wireless networks. In this book, we address the QoS provisioning problem from both the network and the end system perspectives. In the first part of the book, we investigate the problem of statistical QoS provisioning from the network perspective. We propose and develop a link-layer channel model termed the effective capacity model. The effective capacity model captures the effect of channel fading on the queueing behavior of the link, using a computationally simple yet accurate model, and thus, is the critical device we need to design efficient QoS provisioning mechanisms. We call such an approach to channel modeling and QoS provisioning, as effective capacity approach. With the effective capacity approach, we obtain link-layer QoS measures for various scenarios. In the second part of the book, we focus our attention on QoS support from the end system perspective, and present our adaptive QoS control approach for real-time video communication over wireless channels.