With the growing popularity of mobile smart devices, the existing networksare unable to meet the requirement of many complex scenarios; current networkarchitectures and protocols do not work well with the network with high latencyand frequent disconnections. To improve the performance of these networks somescholars opened up a new research field, delay-tolerant networks, in which oneof the important research subjects is the forwarding and routing mechanism ofdata packets. This paper presents a routing scheme based on social networksowing to the fact that nodes in computer networks and social networks have highbehavioural similarity. To further improve efficiency this paper also suggestsa mechanism, which is the improved version of an existing betweennesscentrality based routing algorithm. The experiments showed that the proposedscheme has better performance than the existing friendship routing algorithms.
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