Resource-Constrained Wireless Sensor Network Information Decision Fusion in Ocean Environment

• Published in: Applied Mechanics and Materials Vol. 433-435; no. Advances in Mechatronics and Control Engineering II; pp. 229 - 232
• Main Authors: Bai, Yuan Jie, Feng, Dong Zhu, Yuan, Xiao Guang, Deng, Jian
• Format: Journal Article
• Language: English
• Published: Zurich Trans Tech Publications Ltd 15.10.2013
• Subjects: Channels; Computer simulation; Constraints; Data integration; Likelihood ratio; Multisensor fusion; Ocean environments; Optimization; Performance degradation; Probability distribution functions; Remote sensors; Sensors; Simulation; Statistics; Wireless networks; Wireless sensor networks; Wireless Sensor Network (WSN); Resource-Constrained; Ocean Environment; Information Decision Fusion; Exponential Distribution Fading Channel
• ISBN: 303785894X; 9783037858943
• ISSN: 1660-9336; 1662-7482; 1662-7482
• DOI: 10.4028/www.scientific.net/AMM.433-435.229

In order to solve the decision information fusion issues of resource-constrained wireless sensor network, several decision information fusion rules under exponential distribution fading channel are investigated in this paper. At first, optimal likelihood ratio rule is given. The detection performance of this fusion rule is best, however, this rule acquires channel information which is too costly for resource constrained sensor networks. To solve this problem, suboptimal likelihood ratio fusion rule is proposed which requires only the knowledge of channel statistics. In addition, the reduced forms of the suboptimal are also derived, in the case of extreme channel signal-to-noise ratio (SNR). Theoretical analysis and simulations show that suboptimal fusion rule needs much less computation and information, yet exhibits only slight performance degradation. Suboptimal fusion rules are practicable for resource constrained wireless sensor networks decision information fusion system working in ocean environment.