A trustworthy siot aware mechanism as an enabler for citizen services in smart cities

Ateeq Ur Rehman, Rizwan Ali Naqvi, Abdul Rehman, Anand Paul, Muhammad Tariq Sadiq, Dildar Hussain

Research output: Contribution to journalArticlepeer-review


In the recent era, new information technologies have a significant impact on social networks. Initial integration of information and communication technologies (ICT) into city operations has promoted information city, ease of communication and principles of smart communities. Subsequently, the idea of the Internet of Things (IoT) with the specific focus of social IoT (SIoT) has contributed towards the smart cities (SC), which support the city operations with minimal human interaction. The user-generated data obtained by SIoT can be exploited to produce new useful information for creating citizen-centered smart services for SC. The aim of this research is twofold. Firstly, we used the concept of local and global trust to provide new services in SC based on popular online social networks (OSN) data used by the citizens. Secondly, the sustainability of the three different OSN is assessed. This paper investigates the social network domain with regard to the SC. Although in SC, OSN are increasing day by day, there is still an unresolved issue of trust among their users and also OSN are not much sustainable. In this research, we are analyzing the sustainability of different OSN for the SC. We employ datasets of three different social networks for our analyses. A local trust model is used to identify the central user within the local cluster while the global trust-based framework is used to identify the opinion leaders. Our analysis based on the datasets of Facebook, Twitter, and Slashdot unveil that filtration of these central-local users and opinion leaders result in the dispersion and significant reduction in a network. A novel model is being developed that outlines the relationship between local and global trust for the protection of OSN users in SC. Furthermore, the proposed mechanism uses the data posted by citizens on OSN to propose new services by mitigating the effect of untrusted users.

Original languageEnglish
Article number918
Pages (from-to)1-19
Number of pages19
Issue number6
Publication statusPublished - 1 Jun 2020

Bibliographical note

Funding Information:
Funding: This research was supported in part by the National Nature Science Foundation of China under grants 61471157, 61772090, and 61801055, in part by the Fundamental Research Funds for the Central Universities under grant 2018B23014, and in part by a National Research Foundation of Korea (NRF) grant funded by the Korean government (NRF‐2017R1C1B5017464).

Funding Information:
Acknowledgments: This work would not have been possible without the financial support provided by the Korea Institute for Advanced Study. We are especially thankful to Dr. Dildar Hussain for the conceptualization, funding acquisition, project administration, and supervision.

Publisher Copyright:
© 2020 by the authors. Licensee MDPI, Basel, Switzerland.


  • Communication in smart cities
  • Global trust
  • Local trust
  • Opinion leader
  • Social internet of things


Dive into the research topics of 'A trustworthy siot aware mechanism as an enabler for citizen services in smart cities'. Together they form a unique fingerprint.

Cite this