BeTrust: A Dynamic Trust Model Based on Bayesian Inference and Tsallis Entropy for Medical Sensor Networks

Joint Authors

Gao, Yan
Liu, Wenfen

Source

Journal of Sensors

Issue

Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-10, 10 p.

Publisher

Hindawi Publishing Corporation

Publication Date

2014-12-02

Country of Publication

Egypt

No. of Pages

10

Main Subjects

Civil Engineering

Abstract EN

With the rapid development and application of medical sensor networks, the security has become a big challenge to be resolved.

Trust mechanism as a method of “soft security” has been proposed to guarantee the network security.

Trust models to compute the trustworthiness of single node and each path are constructed, respectively, in this paper.

For the trust relationship between nodes, trust value in every interval is quantified based on Bayesian inference.

A node estimates the parameters of prior distribution by using the collected recommendation information and obtains the posterior distribution combined with direct interactions.

Further, the weights of trust values are allocated through using the ordered weighted vector twice and overall trust degree is represented.

With the associated properties of Tsallis entropy, the definition of path Tsallis entropy is put forward, which can comprehensively measure the uncertainty of each path.

Then a method to calculate the credibility of each path is derived.

The simulation results show that the proposed models can correctly reflect the dynamic of node behavior, quickly identify the malicious attacks, and effectively avoid such path containing low-trust nodes so as to enhance the robustness.

American Psychological Association (APA)

Gao, Yan& Liu, Wenfen. 2014. BeTrust: A Dynamic Trust Model Based on Bayesian Inference and Tsallis Entropy for Medical Sensor Networks. Journal of Sensors،Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-1042968

Modern Language Association (MLA)

Gao, Yan& Liu, Wenfen. BeTrust: A Dynamic Trust Model Based on Bayesian Inference and Tsallis Entropy for Medical Sensor Networks. Journal of Sensors No. 2014 (2014), pp.1-10.
https://search.emarefa.net/detail/BIM-1042968

American Medical Association (AMA)

Gao, Yan& Liu, Wenfen. BeTrust: A Dynamic Trust Model Based on Bayesian Inference and Tsallis Entropy for Medical Sensor Networks. Journal of Sensors. 2014. Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-1042968

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references

Record ID

BIM-1042968