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Han Yang

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Proceedings Article | 23 February 2009 Paper

The research of self-localization algorithms for wireless sensor network

Han Yang, Xiaoying Liu, Shaomin Li, Chong Liu

Proceedings Volume 7278, 72781G (2009) https://doi.org/10.1117/12.823299

KEYWORDS: Sensor networks, Sensors, Computer simulations, Global Positioning System, Error analysis, Optoelectronics, Taxonomy, Receivers, Lithium

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With the development of sensor techniques, low-power and inexpensive wireless sensors have been put into application, then the wireless sensor networks have appeared. Wireless sensor networks can be applied to many areas and have become a new research focus. Many applications of wireless sensor networks are based on sensor self-positioning, which depend on knowing the location of sensor nodes. So the location techniques of sensor nodes are being important. In this article, the principles and characteristics of wireless networks are discussed and presented. The taxonomy for wireless sensor networks localization systems is described. The principles and characteristics of some representative range-free localization approaches are also discussed. The article focuses on the investigation of DV-Hop location algorithm after contrast it with other range-free algorithms. DV-Hop localization uses a mechanism that is similar to classical distance vector routing which uses the product of hops and hopsize to represent the distance. We use VC++ to simulate this algorithm and point out matters needed attention. After got the simulation results, we analyze the result at length, and focus at nodes density and other factors which influence location accuracy, and the reason of the effect is discussed in detail.

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