机会网络无链路性和节点移动性的特点,为节点之间信息传递提供了便利。但是,随着信息传递次数的增加,节点与它的邻居之间传输延迟也会增加,使得网络信息传递的性能下降。为了解决节点之间多跳产生的延迟问题,通过对节点到它的下一跳的邻居节点的历史传输时间进行时间标记,建立局部最小传输延迟算法(minimumtransmissiondelayalgorithm,MTDA)。通过该算法得到网络中多跳最小延迟路径。仿真结果表明,该算法与传统算法比较,减小了节点之间的传输延迟,提高了网络性能。
Opportunity network has characteristics--no link and node mobility ,which provides convenience in transmission in- formation. However, with the increase in the number of information transmission between the node and its neighbors transmis- sion delay will also increase, so that the performance of the network decreases. In order to solve the multi-hop delay between nodes, this paper provided a local minimum transmission delay algorithm through marked the history of the transmission time of the node to its next hop neighbor nodes. With this algorithm, simulation results show that the algorithm compares with the tra- ditional algorithm, reducing the transmission delay between nodes and improve network performance.