Performance evaluation of Binary Spray and Wait OppNet protocol in the context of emergency scenario

Opportunistic Networks (OppNets) can be used as an alternative way to communicate or to interact with each other when a fixed communication infrastructure is down during an incident like an earthquake or tsunami. In this paper, we investigate the factors effecting the performance of an OppNets routing protocol which is Binary Spray and Wait protocol in a condition of emergency situation. We have conducted four experiments; 1) 20 pedestrians, 2) 20 cars, 3) 100 pedestrians, and 4) 100 cars. We evaluated this protocol using Opportunistic Networking Environment (ONE) simulator and analyze the performance in term of delivery probability, number of message dropped, latency average, and hop count average by varying size of buffer and message size.