Fairness-aware sub-optimal relay selection for physical-layer security in AF relaying networks

Du, Haoyu; Ge, Jianhua; Zhang, Chensi; Tian, Peijie

doi:10.1109/wcsp.2016.7752736

Cited by 3 publications

(4 citation statements)

References 16 publications

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“…Then, in [16] and [17] multi-user cooperative relaying strategies were proposed to ensure reliable and secure communication from transmitter to the receiver end. Likewise, [18] explored the idea of ensuring legitimacy among relay nodes in the presence of large number of Eves and proposed sub-optimal relay selection scheme. Furthermore, receiver grouping based selection scheme was proposed to ensure fairness among user terminals.…”

Section: A Related Workmentioning

confidence: 99%

Resource Optimization Framework for Physical Layer Security of Dual-Hop Multi-Carrier Decode and Forward Relay Networks

Nawaz¹,

Khan

Ali

et al. 2021

IEEE Open J. Antennas Propag.

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Physical layer security (PLS) is an emerging area for information security against eavesdroppers (Eve). Information security of any system can also be improved by using friendly jammers that produce interference signals to Eve. Traditional security techniques are limited by the processing power of the wireless nodes, whereas PLS can achieve communication secrecy without requiring computationally expensive cryptographic operations. The relay networks have emerged as a promising technology to enhance the performance of the wireless systems. This paper proposes a joint resource optimization framework for the PLS of dual-hop decode and forward (DF) relay network with and without cooperative jamming. In particular, the proposed framework consists of a base station (BS), multiple users, DF relays, multiple subcarriers, and an Eve. Our objective is to maximize the sum secrecy rate (SR) through optimal power loading over different subcarriers at BS and relay nodes, and efficient subcarrier assignment. We formulate a mixed binary integer programing problem for secrecy optimization and adopt Lagrangian dual method to achieve the efficient solutions. We also provide three benchmark frameworks, i.e., joint power optimization with random subcarrier assignment, equal power allocation with efficient subcarrier assignment and equal power with random subcarrier assignment to guage the performance of our joint resource optimization framework. Simulation results unveil that the proposed joint resource optimization framework under cooperative jamming and without jamming performs significantly better than the benchmark frameworks.

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Section: A Related Workmentioning

confidence: 99%

Resource Optimization Framework for Physical Layer Security of Dual-Hop Multi-Carrier Decode and Forward Relay Networks

Nawaz¹,

Khan

Ali

et al. 2021

IEEE Open J. Antennas Propag.

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show abstract

“…To improve this security performance, investigators have proposed a lot of technologies to ensure communication quality. These technologies can be roughly divided into these aspects: beam-forming technology, [5][6][7] artificial noise technology, [8][9][10] cooperative interference technology, 11 differential channel estimation, 12 network coding, 13 phase rotation, [14][15][16] relay selection, [17][18][19] and so on. In addition, some technologies can be referenced in some specific scenarios.…”

Section: Introductionmentioning

confidence: 99%

Analysis of security and reliability in cognitive radio networks over Rayleigh channels

Sun

Xie

Wang

et al. 2020

Int J Communication

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SUMMARY Increasing the transmitting power will improve the system performance, but it will also increase the potential intercepted risk. Thus, the research of security‐reliability trade‐off (SRT) is valuable. In this paper, we investigate the physical layer security in cognitive radio network (CRN), which consists of a source node, a destination node, an eavesdropper, and multiple relays. The security and reliability are measured by intercept probability (IP) and outage probability (OP), respectively. Different from the previous researches, a more actual scenario is studied for the CRN in the Rayleigh fading environment; that is, the eavesdropper can eavesdrop on the secondary source (SS) and the relays. Besides, we consider the probability of false alarm and missing alarm and study their impact on the OP and IP for direct transmission (DT) and relay selective transmission (RST). The closed‐form expressions of OP and IP show that the false alarm affects the OP and the missing alarm has influence on the OP and IP. Furthermore, we accumulate the sum of the OPs for the RST in the two time slots and compare them with the DT, when we explore the OP. In addition, since the signals may be both intercepted in the two stages of RST, we analyze the IPs in the two time slots respectively and compare them with the DT separately. The simulation results show that the RST scheme can greatly improve the security and reliability by increasing the number of relays compared with the DT scheme.

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“…Different aspects of PLS in AF‐based single‐carrier systems have been studied in other works. () Huang et al investigated the impact of using an untrusted AR on secure communication and derived the exact secrecy outage probability under different transmission scenarios. With multiple trusted relays, Fan et al proposed the different relay selection strategies to enhance the PLS in multiuser cooperative relay networks.…”

Section: Introductionmentioning

confidence: 99%

“…Akhtar et al focused on the achievability of secrecy rate under different channel conditions. The suboptimal relay selection with fairness is studied in the work of Du et al The relay transmit power optimization protocols for secrecy maximization under both AF and DF have been studied in the work of Dong et al…”

Section: Introductionmentioning

confidence: 99%

Enhancing physical layer security in AF relay–assisted multicarrier wireless transmission

Aman

Sidhu

Furqan

et al. 2018

Trans Emerging Tel Tech

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In this paper, we study the physical layer security problem in the dual‐hop orthogonal frequency division multiplexing–based wireless communication system. First, we consider a single‐user single‐relay system and study a joint power optimization problem at the source and relay subject to individual power constraint at the 2 nodes. The aim is to maximize the end‐to‐end secrecy rate with optimal power allocation over different subcarriers. Later, we consider a more general multiuser multirelay scenario. Under high signal‐to‐noise ratio approximation for end‐to‐end secrecy rate, an optimization problem is formulated to jointly optimize power allocation at the base station, the relay selection, subcarrier assignment to users, and the power loading at each of the relaying node. The target is to maximize the overall security of the system subject to independent power budget limits at each transmitting node and the orthogonal frequency division multiple access–based exclusive subcarrier allocation constraints. A joint optimization solution is obtained through the duality theory. Dual decomposition allows to exploit convex optimization techniques to find the power loading at the source and relay nodes. Furthermore, an optimization for power loading at relaying nodes along with relay selection and subcarrier assignment for the fixed power allocation at the base station is also studied. A suboptimal scheme that explores joint power allocation at all transmitting nodes for the fixed subcarrier allocation and relay assignment is investigated. Finally, simulation results are presented to validate the performance of the proposed schemes.

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Fairness-aware sub-optimal relay selection for physical-layer security in AF relaying networks

Cited by 3 publications

References 16 publications

Resource Optimization Framework for Physical Layer Security of Dual-Hop Multi-Carrier Decode and Forward Relay Networks

Resource Optimization Framework for Physical Layer Security of Dual-Hop Multi-Carrier Decode and Forward Relay Networks

Analysis of security and reliability in cognitive radio networks over Rayleigh channels

Enhancing physical layer security in AF relay–assisted multicarrier wireless transmission

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