On the Benefits of Multi-Domain Congestion Control in LTE Networks
Zsolt Krämer, Sándor Molnár, Szilard Solymos, Attila Mihály · 2019
Wireless networks have traditionally been a challenging environment for congestion control algorithms. Our Multi-Domain Congestion Control framework aims to outperform congestion control solutions that are based on client feedback only by leveraging cooperation between the network and the servers. In this paper, we present a performance evaluation of our approach in realistic LTE simulations. We show that Multi-Domain Congestion Control delivers significant performance gains over TCP CUBIC in short flow completion time achieving 33-84% reduction in the 1-10MB flow size range. We also demonstrate that it is able to swiftly react to increased capacity in various typical LTE environments, utilizing the new bandwidth more than 76% faster than CUBIC in a vehicular - and more than 71% faster in pedestrian scenario. Furthermore, it is demonstrated that our cooperative framework also outperforms CUBIC in long term throughput.