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DOI number:10.1109/WCNC45663.2020.9120602
Affiliation of Author(s):School of ComputerScience and Information Engineering, Hefei University of Technology
Journal:2020 IEEE Wireless Communications and Networking Conference
Funded by:National Natural Science Foundation of China under Grants 61971176, and 61901156, Fundamental Resea
Key Words:D2D communications, physical layer security, resource management
Abstract:For the high density of users and accompanying network service requirements in the cellular system, Device-to-Device (D2D) communication is a promising technology to cope with the increasing wireless traffic demands by reusing spectrum resources. In practice, the wireless signal is easy to be eavesdropped in D2D communications underlaying cellular networks, hence, ensuring a secure communication for cellular user equipments (CUEs) is an urgent and meaningful problem. In this paper, we propose a joint subcarrier and power allocation scheme for maximizing the sum data rate of D2D pairs, meanwhile protecting the CUEs against eavesdropping. Specifically, in the proposed scheme, we first quantify the security performance with the secrecy data rate, and obtain the closed-form expression for the optimal power allocation of CUEs and D2D pairs by tightening the quality of service (QoS) and secrecy rate requirement constraints of CUEs. Based on the obtained power allocation solution, by searching the optimal mapping relationship between CUEs and D2D pairs, we develop a subcarrier assignment strategy with the Hungarian algorithm to solve it, which can further enhance the sum data rate of D2D pairs. Simulation results demonstrate that the proposed scheme can significantly yield better performance than other schemes.
Co-author:Yan Wu,Xinyue Hu,Wei Huang
First Author:Caihong Kai
Indexed by:会议
Discipline:Engineering
Document Type:C
ISSN No.:1558-2612
Translation or Not:no
Date of Publication:2020-05-25
Included Journals:EI