【作者】 史庭俊； 桑霞； 徐力杰； 殷新春；

【Author】 SHI Ting-jun, SANG Xia, XU Li-jie, YIN Xin-chun(Department of Computer Science and Engineering,Yangzhou University, Yangzhou 225009, China)

【机构】 扬州大学计算机科学与工程系；

【摘要】 针对DV-Hop算法在网络中存在障碍物形成弯曲路径时不能进行正确定位这一局限性,引入了信任度概念,提出了一种改进的DV-Hop定位算法——基于信任度的DV-Hop改进算法(TDDV-Hop),通过对信任度值的判断筛选出合适的平均每跳距离值.仿真结果表明,TDDV-Hop算法能够减小由于路径弯曲而产生的定位误差,提高定位的精确性.更多还原

【Abstract】 To solve the limitation that DV-Hop algorithm can’t locate accurately when the twist path exists in wireless sensor networks due to the barriers,this paper introduces the concept of Trusty-Degree,and proposes a novel algorithm of DV-Hop localizationan improved localization algorithm for DV-Hop based on Trusty-Degree (TDDV-Hop),in order to filter appropriate average distance per hop by estimating the value of Trusty-Degree.Simulation result demonstrates that TDDV-Hop algorithm can reduce the localization error by twist path,and improve the accuracy of localization.更多还原