scholarly journals Joint power allocation and collaborative beamforming for physical layer security in underlay CR NOMA relay systems

2021 ◽  
pp. 101442
Author(s):  
Changjie Hu ◽  
Quanzhong Li ◽  
Liang Yang ◽  
Jiayin Qin
Keyword(s):  
Power Allocation ◽  
Physical Layer Security ◽  
Physical Layer ◽  
Joint Power ◽  
Relay Systems ◽  
Collaborative Beamforming

Joint Power Allocation and Match Access for Physical Layer Security of Heterogeneous Network

2017 ◽  
Vol 3 (2) ◽  
pp. 11
Author(s):  
Shiwei Yan ◽  
Yong Shang ◽  
Xiguang Zhang
Keyword(s):  
Power Allocation ◽  
Cellular Networks ◽  
Physical Layer Security ◽  
Physical Layer ◽  
Secrecy Capacity ◽  
Matching Problem ◽  
Wireless System ◽  
Joint Power ◽  
Weighted Bipartite Graph ◽  
Practical Constraints

In this paper, we investigate the Physical Layer Security (PLS) of a multiple friendly jammers and multiple users wireless system in Device-to-Device (D2D) communications underlaying cellular networks with an eavesdropper. The aim is to maximize the increase of secrecy capacity of the entire system through optimal power allocation and jamming matching under various practical constraints. Firstly, the total increase secrecy capacity of D2D pairs with the help of jamming is derived, then we obtain optimal jamming power for each D2D pair and formulate the D2D pairs and jammers matching problem in the weighted bipartite graph via designing the Kuhn-Munkres (KM) algorithm. Finally, numerical results demonstrate that our scheme could greatly improve the secrecy performance of heterogeneous D2D and cellular networks.

scholarly journals Joint Power Allocation and Passive Beamforming Design for IRS-Assisted Physical-Layer Service Integration

2021 ◽  
pp. 1-1
Author(s):  
Boyu Ning ◽  
Zhi Chen ◽  
Zhongbao Tian ◽  
Xiaomei Wang ◽  
Cunhua Pan ◽  
...  
Keyword(s):  
Power Allocation ◽  
Service Integration ◽  
Physical Layer ◽  
Joint Power

Dynamic power allocation scheme with clustering based on physical layer security

2018 ◽  
Vol 12 (20) ◽  
pp. 2546-2551 ◽  
Author(s):  
Tianqi Liu ◽  
Shuai Han ◽  
Weixiao Meng ◽  
Cheng Li ◽  
Mugen Peng
Keyword(s):  
Power Allocation ◽  
Physical Layer Security ◽  
Physical Layer ◽  
Allocation Scheme ◽  
Dynamic Power

Physical Layer Security in Millimeter Wave DF Relay Systems

2019 ◽  
Vol 18 (12) ◽  
pp. 5719-5733 ◽  
Author(s):  
Ying Ju ◽  
Haoyu Wang ◽  
Qingqi Pei ◽  
Hui-Ming Wang
Keyword(s):  
Millimeter Wave ◽  
Physical Layer Security ◽  
Physical Layer ◽  
Relay Systems
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