After a disaster, it is unlikely to expect current terrestrial infrastructures to provide the coverage and the Qualityof Service required by emergency operators. Currently, PPDR operators go towards a portable LTE infrastructure that provides an access network to field operators, backhauled by a wireless mesh network that can route traffic from and towards Internet through a satellite gateway. We firstly propose a new per-flow strategy for a backpressure-based routing protocol, BP-MR, and then in the aforementioned environment we analyse the original BP-MR per-packet, the proposed per-flow, and OLSR as routing protocol for the mesh network coupled with three TCP congestion control (Cubic, Hybla, Vegas) performing a typical HTTP transfer. We analysed the throughput, the latency, and the scalability over the number of the flows/operators. An extensive simulation set allows to conclude that employing BP-MR per-flow in the mesh network coupled with TCP Vegas for performing the end-to-end transfer improves the performance for PPDR professionals.
Performance Evaluation of Backpressure Routing in Integrated Satellite-terrestrial Backhaul for PPDR Networks / Grazia, CARLO AUGUSTO; Patriciello, Natale; Casoni, Maurizio; Núñez Martínez, Jose; Baranda, Jorge; Mangues Bafalluy, Josep. - ELETTRONICO. - (2016), pp. 115-122. (Intervento presentato al convegno 12th IEEE International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob 2016), Third International Workshop on Emergency Networks for Public Protection and Disaster Relief (EN4PPDR 2016) tenutosi a New York (U.S.A.) nel 17-19 Ottobre 2016) [10.1109/WiMOB.2016.7763187].