Advanced High-order Hidden Bivariate Markov Model Based Spectrum Prediction

The majority of existing spectrum prediction models in Cognitive Radio Networks (CRNs) don’t fully explore the hidden correlation among adjacent observations. In this paper, we first develop a novel prediction approach termed high-order hidden bivariate Markov model (H2BMM) for a stationary CRN. The...

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Bibliographic Details
Published in:EAI Endorsed Transactions on Wireless Spectrum 2017-12, Vol.3 (12), p.153466-12
Main Authors: Zhao, Yangxiao, Hong, Zhiming, Luo, Yu, Wang, Guodong, Pu, Lina
Format: Article
Language:English
Subjects:
Bivariate analysis
Cognitive radio
cognitive radio network
Computer simulation
high-order hidden bivariate Markov model
Markov chains
Prediction models
Process parameters
spectrum prediction
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Summary:The majority of existing spectrum prediction models in Cognitive Radio Networks (CRNs) don’t fully explore the hidden correlation among adjacent observations. In this paper, we first develop a novel prediction approach termed high-order hidden bivariate Markov model (H2BMM) for a stationary CRN. The proposed H2BMM leverages the advantages of both HBMM and high-order, which applies two dimensional parameters, i.e., hidden process and underlying process, to more accurately describe the channel behavior. In addition, the current channel state is predicted by observing multiple previous states. Afterwards, the mobility of secondary users is fully considered and we propose an advanced approach based on H2BMM, termed Advanced H2BMM, to accommodate a mobile CRN. Extensive simulations are conducted and results verify that the prediction accuracy is significantly improved using the proposed (H2BMM. The Advanced H2BMM is also evaluated with comparison to H2BMM and results show considerable improvements of H2BMM in a mobile environment.
ISSN:2312-6620
2312-6620
DOI:10.4108/eai.12-12-2017.153466