Localization in Wireless Sensor Networks with Known Coordinate Database

Autor: Zhen Fang, Zhan Zhao, Xunxue Cui, Daoqu Geng, Lidong Du, Cheng Pang
Jazyk: angličtina
Rok vydání: 2010
Předmět:
Zdroj: EURASIP Journal on Wireless Communications and Networking, Vol 2010 (2010)
Druh dokumentu: article
ISSN: 1687-1472
1687-1499
DOI: 10.1155/2010/901283
Popis: Geographic location of nodes is very useful for a sensor network. A novel and practical Radio Frequency (RF)-based localization algorithm called Kcdlocation has been presented for some specific sensor network topologies, such as the grid and linear types. The Kcdlocation algorithm is adapted to those wireless sensor networks deployed with known coordinate database. It examines the ordered sequence of neighboring unknown nodes relative to some anchor nodes so that they are ranked to compute the location of unknown nodes by wireless localization measurements. After the task of distinguishing neighboring unknown nodes is completed through the ranging technology, the correct position for each sensor node would be identified. The localization scalability and fault tolerant performance of this algorithm have been evaluated from the perspective of practicability. Its performances for the real circumstance are verified through different experiments with several RF channels and deployment parameters. The node localization accuracy of Kcdlocation in a 5 * 4 grid network reaches 100% in a flat open square.
Databáze: Directory of Open Access Journals
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