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.