Journal on Communications ›› 2018, Vol. 39 ›› Issue (7): 148-156.doi: 10.11959/j.issn.1000-436x.2018113

• Papers • Previous Articles     Next Articles

Link quality prediction model based on Gaussian process regression

Jian SHU1,Manlan LIU2,Yaqing SHANG2,Yubin CHEN1,Linlan LIU2()   

  1. 1 School of Software,Nanchang Hangkong University,Nanchang 330063,China
    2 School of Information Engineering,Nanchang Hangkong University,Nanchang 330063,China
  • Revised:2018-05-25 Online:2018-07-01 Published:2018-08-08
  • Supported by:
    The National Natural Science Foundation of China(61762065);The National Natural Science Foundation of China(61363015);The National Natural Science Foundation of China(61501218);The National Natural Science Foundation of China(61501217);The Natural Science Foundation of Jiangxi Province(20171BAB202009);The Natural Science Foundation of Jiangxi Province(20171ACB20018)

Abstract:

Link quality is an important factor of reliable communication and the foundation of upper protocol design for wireless sensor network.Based on this,a link quality prediction model based on Gaussian process regression was proposed.It employed grey correlation algorithm to analyze correlation between link quality parameters and packet receive rate.The mean of the link quality indication and the mean of the signal-to-noise were selected as input parameters so as to reduce the computational complexity.The above parameters and packet receive rate were taken to build Gaussian process regression model with combination of covariance function,so that link quality could be predicted.In the stable and unstable scenarios,the experimental results show that the proposed model has better prediction accuracy than the one of dynamic Bayesian network prediction model.

Key words: wireless sensor network, Gaussian process regression, link quality prediction, combination of covariance function, grey correlation algorithm

CLC Number: 

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