A Bidirectional Trust Model for Service Delegation in Social Internet of Things

Lijun Wei, Yuhan Yang, Jing Wu, Chengnian Long and Yi-Bing Lin
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Lijun Wei: Department of Automation, Shanghai Jiao Tong University, Shanghai 200240, China
Yuhan Yang: Department of Automation, Shanghai Jiao Tong University, Shanghai 200240, China
Jing Wu: Department of Automation, Shanghai Jiao Tong University, Shanghai 200240, China
Chengnian Long: Department of Automation, Shanghai Jiao Tong University, Shanghai 200240, China
Yi-Bing Lin: Department of Computer Science, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan

Future Internet, 2022, vol. 14, issue 5, 1-16

Abstract: As an emerging paradigm of service infrastructure, social internet of things (SIoT) applies the social networking aspects to the internet of things (IoT). Each object in SIoT can establish the social relationship without human intervention, which will enhance the efficiency of interaction among objects, thus boosting the service efficiency. The issue of trust is regarded as an important issue in the development of SIoT. It will influence the object to make decisions about the service delegation. In the current literature, the solutions for the trust issue are always unidirectional, that is, only consider the needs of the service requester to evaluate the trust of service providers. Moreover, the relationship between the service delegation and trust model is still ambiguous. In this paper, we present a bidirectional trust model and construct an explicit approach to address the issue of service delegation based on the trust model. We comprehensively consider the context of the SIoT services or tasks for enhancing the feasibility of our model. The subjective logic is used for trust quantification and we design two optimized operators for opinion convergence. Finally, the proposed trust model and trust-based service delegation method are validated through a series of numerical tests.

Keywords: trust model; social internet of things; service delegation (search for similar items in EconPapers)
JEL-codes: O3 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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