View article

Generally, routing algorithms for opportunistic networks rely on the fact that nodes are willing to accept data from other nodes under any circumstances, but this is not the case. Selfish nodes might not want to participate in the routing process for various reasons, such as low resources (e.g. battery, memory, CPU, and network bandwidth), fear of malicious data from unknown users, or even lack of interest in helping nodes from other communities. Therefore, these types of nodes should be detected and avoided in the routing process. Moreover, incentive mechanisms that reward nodes when they actively take part in the network and punish them when they do not, should be employed where possible. In this paper, we propose SENSE, a novel social-based collaborative content and context-based selfish node detection algorithm with an incentive mechanism, which aims to reduce the issues of having selfish nodes in …