Trusted Opportunistic Forwarding Model in VANET

Opportunistic Forwarding in Challenged Networks

LEE, CHUL-HO. Design and Analysis of Opportunistic Forwarding in Challenged Networks. (Under the direction of Dr. Do Young Eun.) Challenged networks are those networks, e.g., mobile opportunistic networks (MONs), a.k.a., delay/disruption tolerant networks, and power-constrained or duty-cycled wireless sensor networks (WSNs), where traditional Internet architectures fail to ensure end-to-end com...

Opportunistic Forwarding with Partial Centrality

In opportunistic networks, the use of social metrics (e.g., degree, closeness and betweenness centrality) of human mobility network, has recently been shown to be an effective solution to improve the performance of opportunistic forwarding algorithms. Most of the current social-based forwarding schemes exploit some globally defined node centrality, resulting in a bias towards the most popular n...

Modelling Social-Aware Forwarding in Opportunistic Networks

Opportunistic networks are one of the most promising evolutions of the traditional Mobile Ad Hoc Networks paradigm. Communications in an opportunistic network rely on the mobility of the users: each message is handed over from node to node, making hop-by-hop decisions to select the node that is better suited for bringing the message closer to its destination. Algorithms exploiting social-awaren...

Mobile-relay Forwarding in Opportunistic Networks

Effect of Topology Knowledge on Opportunistic Forwarding

Opportunistic forwarding is a simple scheme for packet routing in delay tolerant networks such as duty cycling sensor networks in which reducing energy consumption is a principal goal. While it is simple and can be analytically characterized, it suffers from a high end-to-end latency. In this paper we show how this latency can be drastically reduced if nodes have limited knowledge of network to...