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针对移动adhoc网络中的拓扑结构具有快速动态变化的特点,提出了一种混合式多路径路由算法(HMPR),该算法不要求各条路径一定是不相交的,通过理论分析表明,这种多路径算法在稳定性较差的链路条件下具有更好的路由可靠性。在HMPR中,还提出了一种估计链路寿命统计特性的方法,所得结果用于寻路策略。在寻路过程中,提出了一种联合选路规则以选择最佳路径。仿真结果表明:HMPR算法可充分利用网络局部拓扑结构的稳定性,预测路径寿命,从而提高所选路径的可靠性,它以比现有的路由算法略大的开销提高了数据包投递率和传输时延性能。
In view of the rapid dynamic change of topology in mobile ad hoc networks, a hybrid multi-path routing algorithm (HMPR) is proposed, which does not require that the paths must not be disjoint. According to the theoretical analysis, this multi-path routing algorithm Path algorithms have better routing reliability under poorer link conditions. In HMPR, a method of estimating the statistical properties of link life is also proposed, and the result is used in the path finding strategy. In the path-finding process, a joint routing rule is proposed to select the best path. Simulation results show that the HMPR algorithm can make full use of the stability of the local topology of the network and predict the life of the path, so as to improve the reliability of the selected path. The HMPR algorithm improves the delivery rate and transmission rate of the data packet with slightly larger overhead than the existing routing algorithm Delay performance.