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01-12-2019 | Research | Issue 1/2019 Open Access

EURASIP Journal on Wireless Communications and Networking 1/2019

Indoor location method of interference source based on deep learning of spectrum fingerprint features in Smart Cyber-Physical systems

Journal:
EURASIP Journal on Wireless Communications and Networking > Issue 1/2019
Authors:
Yunfei Chen, Taihang Du, Chundong Jiang, Shuguang Sun

Abstract

The intensity acquisition and fluctuation of the signal intensity of the interference source caused by the indoor multipath effect are very great, and there is a problem that the best eigenvalue is difficult to choose. A kind of unsupervised machine learning algorithm is proposed, which can independently identify and select the optimal eigenvalue without relying on the prior information. First, the wave signal filtering is reduced and processed by kernelized principle component analysis (KPCA) algorithm. Then, the eigenvalues are selected and the redundant features are eliminated by adaptive parameter adjustment denoising auto-encoder (APADAE) algorithm. Finally, the feature vectors are classified and identified by Softmax algorithm and the classification process are optimized by the particle swarm optimization (PSO) algorithm. Experimental results of the Smart Cyber-Physical systems show that the algorithm can indirectly improve the accuracy of the source location based on improving the classification accuracy.

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