Open AccessExperimental evaluation of reducing ranging‐error based on receive signal strength indication in wireless sensor networks
Author(s) -
Jin Rencheng,
Xu Hao,
Che Zhiping,
He Qingye,
Wang Liding
Publication year - 2015
Publication title -
iet wireless sensor systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.433
H-Index - 27
ISSN - 2043-6394
DOI - 10.1049/iet-wss.2013.0139
Subject(s) - ranging , signal strength , wireless sensor network , received signal strength indication , signal (programming language) , computer science , wireless , environmental science , telecommunications , computer network , programming language
Node localisation technology is one of the most important technologies in wireless sensor networks. Receive signal strength indication (RSSI) technology is adopted to measure the distance between the sensor nodes in this paper, with comprehensive consideration of practicability, power consumption, cost and hardware. Reducing ranging‐error has been the key to location technology based on RSSI. Considering the random and systematic error of ranging, three schemes to reduce the ranging‐error are presented: outlier RSSI values processing, online modelling and error compensation. Through a large number of experiments under different conditions, it is demonstrated that the proposed three methods have better ranging performances, compared with the typical processing.