Location Estimation Based on Convex Overlapping Communication Regions in Wireless Sensor Networks
學年 102
學期 2
發表日期 2014-05-11
作品名稱 Location Estimation Based on Convex Overlapping Communication Regions in Wireless Sensor Networks
作品名稱（其他語言） English
著者 Yeong-Sheng Chen; Shih-Hao Chang; Chun-Chien Teng
作品所屬單位
出版者
會議名稱 Global Wireless Summit 2014
會議地點 Aalborg, Dembark
摘要 This paper proposes a range free localization scheme based on identifying the overlapped communication regions of reference nodes. In the proposed scheme, an unknown node identifies the communication regions of reference nodes from which it can receive beacon messages. The overlapped region of all the communication regions should be the area where the unknown node is located. First, the intersection points of every two communication circles are derived by using the proposed formula. Then, all the intersection points that are not located in the Estimative Rectangle (ER) are discarded. Besides, an overlap degree, which is the number of the communication regions that include this intersection point, is associated with each intersection point. All the intersection points with degree n, which is the total number of reference nodes that the unknown node can hear, are shown to be the vertices of the overlapped region of the communication regions. Since the overlapped region is a convex, the averaged point of the intersection points with degree n must be located within this region and hence can be a good position estimation of the unknown node. Experimental results show that the proposed scheme outperforms the related works, including Centroid, ER and Grid Scan algorithms, in term of better localization accuracy.
關鍵字 averaged point;beacon messages;convex overlapping communication regions;estimative rectangle;intersection points;localization accuracy;location estimation;position estimation;range free localization scheme;reference nodes;unknown node;wireless ad hoc sensor networks
語言 zh_TW
收錄於
會議性質 國際
校內研討會地點 無
研討會時間 20140511~20140514
通訊作者 Shih-Hao Chang
國別 DNK
公開徵稿
出版型式
出處 IEEE Xplore Library
相關連結

機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/106390 )