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Social-Aware Based Secure Relay Selection in Relay-Assisted D2D Communications

Shanshan Yu1, Ju Liu1,*, Xiaoqing Zhang1, Shangbin Wu2
Shandong University, Qingdao, 266237, China.
Samsung R&D Institute UK, Staines-upon-Thames, TW18 4QE, UK.
* Corresponding Author: Ju Liu. Email: .

Computers, Materials & Continua 2019, 58(2), 505-516. https://doi.org/10.32604/cmc.2019.04282

Abstract

Relay-assisted transmission could effectively enhance the performance of Device-to-Device (D2D) communications when D2D user equipments (UEs) are too far away from each other or the quality of D2D channel is not good enough for direct communications. Meanwhile, security is one of the major concerns for proximity services. The secure relay selection problem for D2D communications underlaying cellular network is studied in this paper. Firstly, we define a relay selection area and derive the closed-form of outage probability in D2D links using a Poisson Point Process (PPP) method. Next, in the defined relay selection area, we propose a secure relay selection scheme for the relay-assisted D2D communication system by exploiting the social relation as a security factor. Simulation results show that the scheme based on social relation can greatly improve the security performance of relay-assisted D2D communications.

Keywords

Device-to-device, social-aware, security, poisson point process.

Cite This Article

S. Yu, J. Liu, X. Zhang and S. Wu, "Social-aware based secure relay selection in relay-assisted d2d communications," Computers, Materials & Continua, vol. 58, no.2, pp. 505–516, 2019.

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This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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