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Vol. 186, Issue 3, March 2015, pp. 85-92

 

Bullet

 

An Approximate Sphere of the Four Anchor Nodes Positioning Method Based on RSSI
 

Yong Jun Zhang, En Xiu Chen

Shandong institute of commerce and technology, Jinan, 250103, China National Engineering Research Center for Agricultural Products Logistics, Jinan, 250103, China
Tel.: 086-0831-86335604, fax: 086-0831-86335604

E-mail: zyj420177@163.com

 

Received: 22 December 2014 /Accepted: 27 February 2015 /Published: 31 March 2015

Digital Sensors and Sensor Sysstems

 

Abstract: The utilizing of received signal strength indication (RSSI) in wireless sensor network (WSN) is a distance measurement method to compute the location of nodes, which needn’t additional hardware equipment. However, large errors of measurement may cause by the disturbance of environmental noise and inherent factors of hardware. Through analyzing the location information of anchor nodes and adaptive acquire the uncertain factors of RSSI in WSN to estimate the coordinate of unknown node accurately. We use MATLAB and ZSTACK-CC2530 protocol stack as simulation and real experiments prove that the method to locate nodes is effective and practical than other usual RSSI based strategies.

 

Keywords: Spherical plane angle, RSSI location, Zstack-cc2530, Average position error.

 

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