TY - GEN
T1 - Robust distributed estimation using efficient sensor-fault detection in sensor networks
AU - Chen, Pei Yin
AU - Chang, Li Yuan
AU - Lin, Yi Ming
AU - Lien, Chih Yuan
AU - Chen, Ching Sung
PY - 2010/12/1
Y1 - 2010/12/1
N2 - A robust distributed estimation scheme for fusion center in the presence of sensor faults via collaborative sensor fault detection (CSFD) was proposed in our previous research [9]. The scheme can identify the faulty nodes efficiently and improve the accuracy of the estimates significantly. It achieves very good performance at the expense of such extensive computations as logarithm and division in the detecting process. In many real-time WSN applications, the fusion center might be implemented in an ASIC and included in a standalone device. Therefore, a simple and efficient distributed estimation scheme requiring lower computational complexity is extremely desired for fusion center. In this paper, we propose the efficient collaborative sensor fault detection (ECSFD) scheme. A simple method for measuring faulty weight of sensors is designed in ECSFD. Given the low computational complexity, it is suitable for hardware implementation. Simulation results indicate the accuracy of the estimates obtained from the ECSFD better than that obtained from a conventional approach when applied in sensor networks.
AB - A robust distributed estimation scheme for fusion center in the presence of sensor faults via collaborative sensor fault detection (CSFD) was proposed in our previous research [9]. The scheme can identify the faulty nodes efficiently and improve the accuracy of the estimates significantly. It achieves very good performance at the expense of such extensive computations as logarithm and division in the detecting process. In many real-time WSN applications, the fusion center might be implemented in an ASIC and included in a standalone device. Therefore, a simple and efficient distributed estimation scheme requiring lower computational complexity is extremely desired for fusion center. In this paper, we propose the efficient collaborative sensor fault detection (ECSFD) scheme. A simple method for measuring faulty weight of sensors is designed in ECSFD. Given the low computational complexity, it is suitable for hardware implementation. Simulation results indicate the accuracy of the estimates obtained from the ECSFD better than that obtained from a conventional approach when applied in sensor networks.
UR - http://www.scopus.com/inward/record.url?scp=78651513892&partnerID=8YFLogxK
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U2 - 10.1109/ISAC.2010.5670448
DO - 10.1109/ISAC.2010.5670448
M3 - Conference contribution
AN - SCOPUS:78651513892
SN - 9781424483143
T3 - 2010 2nd International Symposium on Aware Computing, ISAC 2010 - Symposium Guide
SP - 38
EP - 43
BT - 2010 2nd International Symposium on Aware Computing, ISAC 2010 - Symposium Guide
T2 - 2010 2nd International Symposium on Aware Computing, ISAC 2010
Y2 - 1 November 2010 through 4 November 2010
ER -