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提出一种以Epidemic Routing为基础、采用两跳邻居信息交换方式的机会网络低时延路由算法———LDREN,在分组索引的交换过程中交换两跳邻居信息从而增强对本地拓扑的掌握,并优先发送位于最后两跳的数据分组;同时在节点相遇感知过程中借助ECHO消息从节点缓存中删除已到达目的节点的分组.性能分析结果表明,与经典的Epidemic路由算法及其改进算法ARER相比,LDREN在分组端到端时延、分组传送成功率、存储空间占用等方面的性能得到整体提升.
This paper proposes an opportunistic low latency routing algorithm based on Epidemic Routing based on two-hop neighbor information exchange --- LDREN. It exchanges two-hop neighbor information during packet index exchange to enhance the local topology control. At the same time, in the process of node encounter perception, ECHO messages are used to delete the packets that have reached the destination node from the node cache.Experimental results show that, compared with the classic Epidemic routing algorithm and its improved algorithm ARER , LDREN overall performance improvement in terms of packet end-to-end delay, packet transfer success rate, storage space occupancy and other aspects.