Ad hoc网络中的一种动态均匀区域广播算法

Dynamically symmetrical area broadcast algorithm in Ad hoc network

AdHoc网络是一种无固定通信设备支持、节点可自由移动的多跳全分布式无线网络。动态均匀区域广播算法是在概率算法和计数器算法的基础上,通过邻居节点与转发节点发送范围边界上均匀分布点的位置关系,以及网络中节点的分布密度动态地调整转发概率。文中给出了NS-2下的仿真结果。模拟实验表明,本算法在节省转发率和可达率两个性能指标上均优于概率算法和计数器算法。

Ad hoc network is of no stationary infrastructure, and the node acting as terminal and router can move freely. The dynamically symmetrical area algorithm was based on the probabilistic algorithm and the counter-based algorithm. According to the relative location between the neighboring node and the symmetrical point around the forwarding host and the distribution density of nodes in Ad Hoe network, we dynamically adjusted the rebroadcast probability. The simulation results under NS-2 were presented in the paper. The simulation results show that the algorithm gets higher saved rebroadcast and reachability than the probabilistic algorithm and the counter-based algorithm.