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

• 作者: Ju Liu Shangbin Wu Shanshan Yu Xiaoqing Zhang
• 来源期刊: 计算机、材料和连续体(英文)
• 学科: 工学
• 关键词: Device-to-device social-aware security POISSON point process
• 年，卷（期）: 2019,（2）
• 页码范围: 505-516
• 页数: 12页
• 分类号: TN9

摘要

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.