Title :
Efficient spatial data recovery scheme for cyber-physical system
Author :
Nower, Naushin ; Yasuo Tan ; Lim, Azman Osman
Author_Institution :
Japan Adv. Inst. of Sci. & Technol. (JAIST), Nomi, Japan
Abstract :
Feedback data loss can severely degrade the overall system performance and as well as it can affect the control and computation of the Cyber-physical System (CPS). Therefore, incomplete feedback makes a great challenge in any uncertain condition to maintain the real-time control of the CPS. In this paper, we propose a data recovery scheme, called Efficient spatial data recovery (ESDR) scheme for CPS to minimize the error estimation and maximize the accuracy of the scheme. In this scheme, we also present an algorithm with Pearson correlation coefficient (PCC) to efficiently solve the long consecutive missing data. Numerical results reveal that the proposed ESDR scheme outperforms both weighted prediction (WP) and spatial temporal imputation (STI) algorithms regardless of the increment percentage of missing data in terms of the root mean square error, mean absolute error and integral of absolute error.
Keywords :
correlation methods; data handling; embedded systems; feedback; least mean squares methods; system recovery; CPS; ESDR scheme; PCC; Pearson correlation coefficient; STI algorithm; WP algorithm; absolute error integral; cyberphysical system; efficient spatial data recovery scheme; error estimation; feedback data loss; mean absolute error; real-time control; root mean square error; spatial temporal imputation algorithm; weighted prediction algorithm; Algorithm design and analysis; Correlation; Estimation; Real-time systems; Spatial databases; Wireless communication; Wireless sensor networks; cyber-physical system; data recovery scheme; pearson correlation coefficient; spatial correlation;
Conference_Titel :
Cyber-Physical Systems, Networks, and Applications (CPSNA), 2013 IEEE 1st International Conference on
Conference_Location :
Taipei
DOI :
10.1109/CPSNA.2013.6614249