Simulating Opportunistic Networks: Survey and Future Directions

Abstract

Abstract-Simulation is one of the most powerful tools we have for evaluating the performance of Opportunistic Networks. In this survey, we focus on available tools and models, compare their performance and precision and experimentally show the scalability of different simulators. We also perform a gap analysis of state-of-the-art Opportunistic Network simulations and sketch out possible further development and lines of research.This survey is targeted at students starting work and research in this area while also serving as a valuable source of information for experienced researchers.

My Smartphone tattles: Considering Popularity of Messages in Opportunistic Data Dissemination

“…OppNets can be applied in various applications, mostly: (1) in disaster scenarios, where the infrastructure has been damaged; (2) for various delay-tolerant applications, such as dissemination of city or campus events and notifications, and crowd sensing; and (3) for strictly localised real-time applications, such as autonomous driving. In this paper, we mostly focus on the second family of applications, where a delay of several hours is acceptable.…”

“…Our extensive simulation comparison between KEETCHI and the well known EPIDEMIC protocol shows that the network overhead of data forwarding can be significantly reduced while keeping the delivery rate the same.2 of 25 such data publicly available, as is already the case for a project in Canada [1]. In such cases, OppNets offer a good alternative, as they are free in terms of costs and accessible to everyone with minimal equipment (e.g., a smartphone).Much research effort has been invested recently in designing and evaluating data dissemination protocols for OppNets [2,3]. On the one hand, these protocols need to leverage at best, the mobility of people and the available communication opportunities (contacts) and, on the other hand, they need to minimise the overhead of communications.…”

“…Much research effort has been invested recently in designing and evaluating data dissemination protocols for OppNets [2,3]. On the one hand, these protocols need to leverage at best, the mobility of people and the available communication opportunities (contacts) and, on the other hand, they need to minimise the overhead of communications.…”

Predict and Forward: An Efficient Routing-Delivery Scheme Based on Node Profile in Opportunistic Networks

“…Opportunistic network (OppNet) [1,2] is a delay-tolerant Ad-hoc network, where the source node communicates with the destination without a complete communication route between them. Therefore, the message application uses the "opportunities" created by the movement of nodes to implement the end-to-end data transmission.…”

“…In recent years, with the rapid development of novel wireless devices, such as mobile phones, smart watches, Bluetooth earphones or other wearable sensor devices, the message applications in opportunistic social networks [3,4] may obtain more opportunities to communicate with each other. Moreover, the hot issues of opportunistic networks include routing algorithms [5][6][7], mobile models [8,9], security and cooperation [1,10], and applications [11,12].…”