Analysis and Improvement of Earliest-Delivery Routing Algorithm Based on DTN
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This paper focuses on one of DTN's deterministic routing algorithms—ED(Earliest-Delivery) and makes an analysis of its calculation of the delay cost function.To select the accurate time of routing decision-making and optimize the calculation of delay cost,a link connection state table is employed.On this basis,the transmission delay and rules of node-link connection are taken into account.Experimental results show that the improved ED can effectively reduce the delay and improve routing success rate.