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针对命名数据网络应用于无线多跳环境时,节点移动造成兴趣包转发找不到可达下一跳的问题,提出了基于相似节点转接的移动支持方案。该方案在移动节点周围的众多邻近节点中找到最佳目标节点,并把移动节点上的通信进程转接到最佳目标节点。为了找到这一最佳节点,设计了一种基于前向信息转发表的相似性算法来进行节点切换选择。仿真通过与目前的解决方案相对比,表明该方案能够有效减小设备在移动环境下的请求失败率和请求时延,并且随着移动节点的增多,网络对于抑制移动的影响具有更好的稳定性,验证了该方案能有效支持命名数据网络应用于无线多跳环境时的移动性。
When the naming data network is applied to a wireless multi-hop environment, the problem that the mobile node can not find the next hop due to the mobile node’s mobility is proposed. A mobile support scheme based on similar node transfer is proposed. The scheme finds the best target node among the many neighboring nodes around the mobile node and transfers the communication process on the mobile node to the best target node. In order to find this optimal node, a similarity algorithm based on forward information forwarding table is designed to switch node selection. Compared with the current solution, simulation shows that the proposed scheme can effectively reduce the equipment failure rate and the request delay in the mobile environment, and with the increase of mobile nodes, the network has a better stability in suppressing the impact of mobile It proves that the proposed scheme can effectively support the mobility of named data networks in wireless multi-hop environment.