Abstract
DTN is a type of network with the routing strategy of storage and forward. Owing to the character of high latency, low transfer rate and intermittent connectivity, it is difficult to maintain the reliability of end to end paths. Hence the research of DTN protocol is meaningful and critical. In this paper, we assume a vehicle network scenario in the disaster. There exists significant performance degradation of existing DTN algorithms due to the damage. In order to deal with this problem, we present an improved SW routing algorithm based on the node delivery probability, which called DPR routing algorithm. We verified the proposed method by simulation. The results show that the proposed method has high message delivery ratio and low average latency in the vehicle network scenario of disaster compared with existing DTN algorithms.
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