Abstract
Delay Tolerant Network is an emerging research field. In this network, a long period of network partition happens frequently. In this paper, we present the notion of QoN (Quality of Node) based on the differences of node activity. Then we introduce the notion of QoN to forward the number of message copies dynamically to improve the Binary Spray and Wait routing. This Protocol can avoid the blindness of the BSW routing (Binary Spray and Wait) when message copies are forwarded. The results show that QoN-BSW routing can significantly enhance delivery utility and reduce the overhead while improving the delivery probability and reducing the delay.
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