期刊论文

Wireless sensor network trust model based on time factor

中文

计算机工程与设计

1000-7024

2017

38

4

883-887+1034

10.16208/j.issn1000-7024.2017.04.009

湖南省教育厅科学研究重点基金项目（14A121）；

本校为第一机构

考虑到WSN节点的交互时延和能耗问题,提出一种基于时间因素的WSN信任模型。在计算直接信任度和间接信任度时引入时间衰减因素,使离当前时刻越远的信任值衰减越大,对整体信任度的影响越小,通过反馈控制机制动态更新簇内节点和簇头节点的信任度,使整体信任值具有时效性,对节点信任度的评价更精确可靠。实验结果表明,该信任模型能够有效降低无线传感网络节点之间的交互时延并提高模型的稳定性及可靠性,在对交互时延要求较高和低能耗的WSN环境下能够发挥更好作用。

Considering the interaction delay and energy consumption of WSN nodes, a WSN trust model based on time factor was proposed. A reduction factor of time was introduced when calculating the direct trust and indirect trust, farther away from the current time, the greater attenuation of the trust value, the less impact on the overall trust, together, the trust value of cluster head nodes and cluster nodes were updated in time to reflect the dynamics of the trust environment using feedback control mechanism. The value of the overall trust has timeliness, and the evaluation of node trust is more accu...