Title
Decision Fusion with Channel Errors in Distributed Decode-Then-Fuse Sensor Networks
Abstract
Decision fusion for distributed detection in sensor networks under non-ideal channels is investigated in this paper. Usually, the local decisions are transmitted to the fusion center (FC) and decoded, and a fusion rule is then applied to achieve a global decision. We propose an optimal likelihood ratio test (LRT)-based fusion rule to take the uncertainty of the decoded binary data due to modulation, reception mode and communication channel into account. The average bit error rate (BER) is employed to characterize such an uncertainty. Further, the detection performance is analyzed under both non-identical and identical local detection performance indices. In addition, the performance of the proposed method is compared with the existing optimal and suboptimal LRT fusion rules. The results show that the proposed fusion rule is more robust compared to these existing ones.
Year
DOI
Venue
2015
10.3390/s150819157
SENSORS
Keywords
Field
DocType
decision fusion,channel errors,average bit error rate,likelihood ratio test,decode-then-fuse,sensor networks
Data mining,Likelihood-ratio test,Computer science,Communication channel,Fusion rules,Sensor fusion,Fusion center,Binary data,Wireless sensor network,Bit error rate
Journal
Volume
Issue
Citations 
15
8
2
PageRank 
References 
Authors
0.36
22
4
Name
Order
Citations
PageRank
Y.S. Yong1344.90
Haiyan Wang23916.48
Xiao-Hong Shen33213.95
xionghu zhong420.36