Covert Performance for Integrated Satellite Multiple Terrestrial Relay Networks with Partial Relay Selection

Abstract

Integrated satellite multiple terrestrial relay network (ISMTRN) is a new network architecture that combines satellite communication with terrestrial communication. It both utilizes the advantages of the two systems and overcomes their shortcomings. However, security issues inevitably arise in the ISMTRN resulting from the broad coverage of the satellite beams and the openness of wireless communication. One of the promising methods to achieve secure transmission is covert communication technology, which has been a hot discussion topic in recent years. In this paper, we investigate the performance of covert communication in the ISMTRN with partial relay selection. Particularly, when the satellite transmits its signal to the user, we consider the scenario that the selected relay opportunistically sends covert information to the destination. Furthermore, the closed-form error detection probability and average covert communication rate are derived. Finally, numerical simulation results are provided to reveal the impact of critical parameters on system covert performance.

Covert Communications in Satellite Internet: A Survey

“…Du et al in [68] investigated a jammer-aided UAV covert communication system, which aims to maximize the user's covert rate with optimized transmit and jamming power, where the UAV is equipped with multi antennas to serve multiusers simultaneously. To improve the covertness of satelliteterrestrial transmission, Wu et al in [69] proposed a relay selection scheme for the integrated satellite multiple terrestrial relay network (ISMTRN), where the closed-form error detection probability and average covert communication rate are derived.…”

“…In the airbased network, the authors in [66] utilized the multi-antennas UAV to covert communication with multi-users on the ground simultaneously. In the space-based network, the authors in [69] applied cooperative relay technology in ISMTRN to improve the covert communication performance of the system. We believe that these technologies can be further applied to Satellite Internet in the future.…”

Optimization of Intelligent-Reflecting-Surface-Enabled Covert Communication in Multi-Sensor Systems

“…Addressing security concerns pertaining to information transmission in multi-sensor environments emerges as a pivotal undertaking [3][4][5]. Traditional encryption methodologies and techniques in physical layer security primarily concentrate on protecting the communication content [6,7]. Nevertheless, the mere protection of communication content no longer suffices to meet contemporary information security requisites [8,9].…”

Optimization of Covert Communication in Multi-Sensor Asymmetric Noise Systems

“…Meanwhile, the security issues related to information transmission in the Internet of Things (IoT) will become one of the primary tasks in the future [3][4][5]. Traditional encryption methods and physical layer security techniques aim to prevent eavesdropping on communication content [6,7], but merely protecting communication content is no longer sufficient to meet the current requirements for information security [8]. Even if the information is encrypted, metadata such as network traffic patterns may still leak some sensitive information [9].…”