非稳定路径下传感器节点通信优化方法研究

Research on Iptimization Method of Eensor Node Communication under Unsteady Path

在一些移动节点的传感器网络中,网络节点死亡后,节点之间的路径关系成动态变化,死亡节点会打乱原有的路径模型,传统的路径计算方法以静态节点为主,假设节点在短时间内处于静态。但是,一旦节点运动过快,这种假设就是错误的,导致节点之间无法建立稳定路径模型,通信效率低下。为了避免上述传统算法的缺陷,提出了一种协同多跳通信协议的非稳定路径下传感器节点通信优化方法。计算非稳定路径在传感器节点通信过程中需要消耗的能量,为传感器节点通信提供准确的数据基础。利用协同多跳通信协议,完成非稳定路径下传感器节点通信。实验结果表明,利用改进后的方法进行非稳定路径下传感器节点通信,可以减少通信过程中的总能耗,提高通信网络的可靠性,降低通信的时延性。

In some mobile nodes in sensor networks, after network nodes are dead, the path relationship between the nodes will change dynamically, this results in the disruption of original node path model. The traditional path calculation methods are mainly static nodes. They assume that nodes in a short time are static. However, once nodes move too fast, this assumption is wrong, the path between nodes cannot establish stable model, and the communication is inefficient. To avoid these shortcomings of traditional algorithms, this paper presented an optimization method of mnlti - hop communication protocols in a collaborative unsteady path of the sensor node communication. In this method, the energy consumption of non - stable path for the sensor node communication process requires calculation to provide the accurate data base for sensor - node communication. Then, by using cooperative multi - hop communi- cation protocol, the non - steady path of sensor nodes was accomplished. The experimental results show that the im- proved method for sensor node communication in non - stable path can reduce the total energy consumption, improve the reliability of the communication network, and reduce the delay of the communication.