Asymptotic performance analysis for minimum-hamming-distance fusion

Po-Ning Chen*, Tsang Yi Wang, Yunghsiang S. Han, Pramod K. Varshney, Chien Yao


研究成果: Conference contribution同行評審

5 引文 斯高帕斯(Scopus)


Distributed (M-ary) detection and fault-tolerance have been considered as two fundamental functions in the context of large-scale sensor networks. Distributed multiclass classification fusion using error correcting codes (DCFECC) has been proposed to provide good fault-tolerance capability in wireless sensor networks. Minimum Hamming distance fusion is an essential part of the DCFECC approach. In this paper, we study the asymptotic performance of minimum Hamming distance fusion for both fault-free and faulty situations when the number of sensors tends to infinity. We conclude that the error probability vanishes asymptotically as long as the minimum Hamming distance dmim of the DCFECC code approaches infinity, and the probabilities of correct local classification for all hypotheses are greater than one half. In case d mim/2, normalized by the number of sensors, can be made larger than the largest local classification error, an explicit expression for the error exponent of the DCFECC system in terms of the Kullback-Leibler divergence can be established. A converse where the DCFECC decoding error is bounded away from zero is also addressed.

主出版物標題2005 IEEE ICASSP '05 - Proc. - Design and Implementation of Signal Proces.Syst.,Indust. Technol. Track,Machine Learning for Signal Proces. Signal Proces. Education, Spec. Sessions
發行者Institute of Electrical and Electronics Engineers Inc.
ISBN(列印)0780388747, 9780780388741
出版狀態Published - 23 3月 2005
事件2005 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP '05 - Philadelphia, PA, United States
持續時間: 18 3月 200523 3月 2005


名字ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings


Conference2005 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP '05
國家/地區United States
城市Philadelphia, PA


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