摘要
采用多径路由机制能够有效保证Ad hoc网络数据包传输成功概率,提高网络可靠性。该文在路径数量分析的基础上,根据分组丢弃概率门限判决方法,提出了基于路径分段的自适应多径路由协议。节点采用预先设定的门限值判定链路状态,并且根据网络当前的拓扑状态自适应地选择中继节点,建立路径分段的多径路由。仿真结果表明,该机制在合理利用网络资源的同时能够有效保障数据包的可靠传输,更加适用于状态时变的Ad hoc网络。
The probability of packet delivered in Ad hoc network can be guaranteed by the multi-path scheme, with the analysis on the path numbers, the decision method based on packet drop rate is introduced; furthermore, the segment adaptive multi-path routing protocol is proposed. The mobile node estimates its status with the threshold pre-defined by monitoring the packet drop rate on the link, so the segmented multi-path can be established under current network topology, then the relay nodes can be selected adaptively. Simulations results show that the protocol can provide the reliable transmission for data packet while utilizing the network resource effectively.
出处
《电子与信息学报》
EI
CSCD
北大核心
2009年第3期698-701,共4页
Journal of Electronics & Information Technology
基金
国家自然科学基金(60372101
60772109)资助课题
