Node Placement for Long Bounded Belt Complete 2-Coverage in Wireless Sensor Networks

被引：2
|
作者：
Wang, Tingting [1 ]
Sun, Yanjing [1 ,2 ]
Xu, Zhao [1 ]
Zhai, Wenyan [1 ,2 ]
Zhuo, Ran [1 ]
机构：
[1] China Univ Min & Technol, Coll Informat & Elect Engn, Xuzhou 221008, Peoples R China
[2] Coal Mine Elect Engn & Automat Lab Jiangsu Prov, Xuzhou 221008, Peoples R China
来源：
MATHEMATICAL PROBLEMS IN ENGINEERING | 2015年 / 2015卷
基金：
中国国家自然科学基金;
关键词：
BARRIER COVERAGE PROBLEM; ISSUES;
D O I：
10.1155/2015/672768
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Based on Isosceles Triangle (Iso-Tri) placement and the extended Equalization Strip theory, we propose an Isosceles Trapezoid complete 2-coverage (Iso-TraC2) placement method for completely covering a long bounded belt area, which requires that any point within the belt is covered by at least two nodes. Coverage density and coverage efficiency are calculated to evaluate the degree of complete coverage, which can reflect the number of nodes needed and the degree of redundancy, respectively. The extreme ratio of sensing radius to belt width is deduced when the coverage density reaches the minimal value. Results demonstrate that when a belt with width w is given, the node sensing radius r had better satisfied w < r < 2w to guarantee a higher coverage efficiency and lower coverage density for bounded belt compete coverage. Mathematical analysis shows that the proposed method performs better than the existing ones with smaller nodes number and less coverage redundancy.
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收藏
页数：13
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