Investigation on Mobility Model in Opportunistic Network

Opportunistic Network as a novel networking, taking advantage of meeting opportunities of mobile nodes, completes the message transmission from the source node to the destination node through the way of each hop. Mobility model decides how the nodes move and is used to analyze network performance with various protocols, such as routing protocols, data dissemination protocols, etc. Currently many mobility models are proposed by researchers. To evaluate these mobility models, an analysis method is proposed. So we propose a method by analyzing mobile distance to assess node mobility models. This paper firstly introduced the commonly used mobility models based on ONE simulation platform, and then a calculation method of node mobile distance is put forward. Next, it was simulated and discussed that we have considered the nodes mobility features by mobile distance. Finally, we use the node contact duration and node inter-contact time as a validation, to make an evaluation for node mobility model.