Minimizing delays in mobile networks: With dynamic gateway placement and active queue management

This paper presents mechanisms that have the potential for dramatically reducing end-to-end delay in mobile networks. We introduce a simple algorithm for dynamic user plane gateway placement in a mobile network. The proposed algorithm is able to optimize gateway location according to given targets, e.g., path latency or bottleneck link load. We shall also present how active queue management can be used in the backhaul and at the access point per-flow buffers in order to minimize end-to-end delay.