A Sensor Positioning Scheme Using Neighbor Density Probability Models in Irregular Wireless Sensor Networks
In wireless sensor networks, the positions of sensor nodes are very important for many applications. If each sensor node provides information with less positioning error, the positioning information will be reliable. One of the most representative positioning schemes, called DV-HOP is low for positioning accuracy in irregular network environments. Moreover, because it requires many anchor nodes for high accuracy, it is expensive to construct the network. To overcome such problems, we propose a novel sensor positioning scheme in irregular wireless sensor networks. By doing so, the proposed scheme ensures the high accuracy of sensor positioning in non-uniform networks. To show the superiority of our proposed scheme, we compare it with the existing scheme. Our experimental results show that our proposed scheme improves about 36 % sensor positioning accuracy over the existing scheme on average even in irregular sensor networks.
KeywordsWireless sensor network Positioning Central limit theorem
This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2012R1A1A2A10042015).
- 1.Yick, J., Mukherjee, B., Ghosal, D.: Wireless sensor network survey. Comput. Netw. 52(12), 2292–2330 (2008)Google Scholar
- 2.Schlecht, E., Hulsebusch, C., Mahler, F., Becker, K.: The use of differentially corrected global positioning system to monitor activities of cattle at pasture. Appl. Animal Behav. Sci. 85(3–4), 185–202 (2004)Google Scholar
- 3.He, T., Huang, T., Blum, B.M., Stankovic, J.A.: Range-free localization schemes for large scale sensor networks. In: International Conference on Mobile Computing and Networking, pp. 81–95 (2003)Google Scholar
- 4.Niculescu, D., Nath, B.: DV based positioning in ad hoc networks. Telecommun. Syst. 22(1–4), 267–280 (2003)Google Scholar
- 5.William, A.: Central limit theorem. In: International Encyclopedia of the Social Sciences Pub, pp. 467–487 (2008)Google Scholar
- 6.J-Sim.: http://www.j-sim.zcu.cz/