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Lecture notes in computer science

An Effective Cooperative Jamming-Based Secure Transmission Scheme for a Mobile Scenario

Haidong Huang, Yan Huo, Qinghe Gao, Tao Jing, Zhiwei Yang

Published Nov 12, 2024• 0 citations
Publisher
DOI
10.1007/978-3-031-71464-1_5

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Physical layer security has attracted significant attention in the field of wireless communications. The application of artificial noise can reduce the eavesdropping ability of illegal eavesdroppers without affecting legitimate users. However, most current physical layer security schemes only consider static scenarios and do not account for mobility. Some schemes analyze security performance in mobile scenarios with friendly jammers but do not consider the handoff and cooperation of friendly jammers due to mobility. To address this challenge, we propose a scheme for soft-handoff-based cooperative jamming (CJSH) in mobility scenarios. Initially, we consider a common scenario where a base station communicates with a legitimate mobile user, alongside a mobile passive eavesdropper and multiple friendly jammers emitting artificial noise in the circular area covered by the base station’s signal. Next, We measure the connection outage probability (COP) and secrecy outage probability (SOP) under the influence of multiple friendly jammers in the proposed scheme. We also design two corresponding thresholds for jammers to join and exit. To balance security and energy consumption, we define the Power Average Security Gain (PASG) as a measure of system performance. Finally, we provide numerical simulation results to verify the rationality of the proposed handoff scheme, demonstrating its effective improvement of the system’s security performance and power utilization.
This paper aims to improve security performance of data transmission with a mobile eavesdropper in a wireless network. The instantaneous channel state information (CSI) of the mobile eavesdropper is unknown to legitimate users during the communication process. Different from existing work, we intend to reduce power consumption of friendly jamming signals. Motivated by the goal, this work presents a location-based prediction scheme to predict where the eavesdropper will be later and to decide whether a friendly jamming measure should be selected against the eavesdropper. The legitimate users only take the measure when the prediction result shows that there will be a risk during data transmission. According to the proposed method, system power can be saved to a large degree. Particularly, we first derive the expression of the secrecy outage probability and set a secrecy performance target. After providing a Markov mobile model of an eavesdropper, we design a prediction scheme to predict its location, so as to decide whether to employ cooperative jamming or not, and then design a power allocation scheme and a fast suboptimal helper selection method to achieve targeted and efficient cooperative jamming. Finally, numerical simulation results demonstrate the effectiveness of the proposed schemes.
Secure the cooperative transmission is studied for an automatic repeat request (ARQ)-based wireless network against a jamming-aided eavesdropper. The eavesdropper utilizes the jamming attack to assist its eavesdropping by forcing the legitimate transmitter to retransmit its confidential messages under poor wiretap channel quality. Then, utilizing these retransmission opportunities, the eavesdropper will eavesdrop the confidential message under good wiretap channel quality. To address the threat from the jamming-aided eavesdropper in the ARQ-based wireless network, we propose an adaptive cooperative relaying and jamming secure transmission scheme to protect the confidential messages. In the proposed scheme, the legitimate receiver adopts the energy detection method to detect the jamming-aided eavesdropper's action and a cooperative node will aid the secure transmission through cooperative relaying under jamming attack or cooperative jamming under eavesdropping attack. By taking into account of the detection errors, we investigate the transmission outage probability and the secrecy outage probability, and derive their closed-form expressions for both one retransmission and multiple retransmissions scenarios. Numerical results are presented to verify the derived analytical results and demonstrate the performance superiority of the proposed scheme in terms of the secrecy outage probability.