Thomas Pötsch investigates the channel properties of cellular networks and analyzes the effects that cause inefficient performance of legacy congestion control protocols, such as TCP and its variants, on cellular networks. Inspired by the findings, a novel delay-based congestion control protocol called Verus is proposed and evaluated across a variety of network scenarios. Furthermore, the author develops a stochastic two-dimensional discrete-time Markov modeling approach that dramatically simplifies the understanding of delay-based congestion control protocols.   Contents Congestion Control Protocols Channel Measurements of Cellular Networks The Verus Protocol Evaluation of the Verus Protocol Modeling of Delay-Based Congestion Control Protocols Target Groups Researchers and students in the field of communication networks, especially with a focus on transport and congestion control protocols, cellular networks, and analytical modeling of congestion control protocols The Author Thomas Pötsch completed his doctoral degree at the Communication Networks Group of TZI (Center for Communication and Information Technology), University of Bremen, Germany. He is now a postdoctoral fellow at the Department of Computer Science at the New York University Abu Dhabi, United Arab Emirates, working in the field of mobile communication and transport protocols.