Prof. Dapeng Oliver Wu
Department of Electrical and Computer Engineering
University of Florida

Abstract
Next-generation wireless networks are expected to provide quality of service (QoS) guarantees. In this talk, I will present our recently developed theory, called RED theory, for QoS provisioning in wireless networks. The RED theory is used to quantify the relationship among data rate (R), packet error probability (E), and delay bound (D), under the interaction between the link layer and the physical layer. Our results provide important insights about optimal rate control policy for joint link layer and physical layer design; the proposed RED Pareto surface represents a major step toward deriving the probabilistic delay-constrained channel capacity of fading channels, which is an unsolved problem in information theory.