Secure Resource Allocation for OFDMA Two-Way Relay Wireless Sensor Networks Without and With Cooperative Jamming

Zhang, Haijun; Xing, Hong; Cheng, Julian; Nallanathan, Arumugam; Leung, Victor C. M.

doi:10.1109/tii.2015.2489610

Cited by 142 publications

(87 citation statements)

References 31 publications

(27 reference statements)

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“…The authors of [22] consider an AF two-way relay scenario with multiple relay nodes and CSI errors and proposed a joint implementation algorithm of subcarrier pairing and allocation, relay selection, and transmit power allocation. Moreover, [6][7][8] have expanded the idea of TWR into WSN settings. In [6], a novel policy incorporating single-threshold noncoherent energy detection and digital network coding at the relay side was developed for the WSN, where two sources would like to exchange low-rate data via a shared relay with complexity or latency limit.…”

Section: Related Workmentioning

confidence: 99%

“…In [6], a novel policy incorporating single-threshold noncoherent energy detection and digital network coding at the relay side was developed for the WSN, where two sources would like to exchange low-rate data via a shared relay with complexity or latency limit. In order to maximize the secrecy sum rate, the authors of [7] proposed joint subcarrier assignment, subcarrier pairing, and power allocation algorithms for the orthogonal frequency division multiple access two-way relay WSN with and without cooperative jamming. The authors of [8] proposed a communication scheme employing TWR for three sensor nodes to support bi-directional communications of two applications.…”

Section: Related Workmentioning

confidence: 99%

“…To that end, we make a modification to the solution achieved earlier. According to (7), one can find that the received SNRs of the two sources are both monotonically increasing functions of e R (k). Thus, we modify e R (k) in (18).…”

Section: Endnotesmentioning

confidence: 99%

“…Since cooperative relay scheme could make the data delivery of WSNs more reliable and thus ensure the strict requirements of the network, some pioneer works [3][4][5][6][7][8] have been trying to apply the cooperative relay scheme to WSNs. In general, there are two transmission fashions for a two-hop cooperative relay scheme, namely, oneand two-way relaying.…”

Section: Introductionmentioning

confidence: 99%

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Power minimization for OFDM modulated two-way amplify-and-forward relay wireless sensor networks

Bao

2017

J Wireless Com Network

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This paper studies a power minimization problem of an orthogonal frequency-division multiplexing modulated two-way amplify-and-forward relay wireless sensor network (WSN). The objective is to develop effective strategies for controlling the transmit power levels of WSN nodes and assigning the bit rates among different subcarriers to minimize the overall transmit power of the network, while ensuring the end-to-end target rates of the two WSN sources. By using channel knowledge at transmitters, a two-step method is proposed to solve the power minimization problem, resulting in a joint power control and bit rate assignment (JPCBRA) algorithm. At the first step, a per-subcarrier optimization problem concerning the power minimization issue is solved, giving closed-form solutions for individual transmit powers at the WSN sources and the relay. At the second step, the end-to-end target rates of the two WSN sources are allocated to different subcarriers so that the total transmit power can be reduced further while satisfying the initial data-rate requirement of the two WSN sources. Computer simulation results confirmed the effectiveness of the proposed JPCBRA algorithm. It is shown that with the JPCBRA algorithm, the total transmit power of the network can be significantly reduced in any traffic and/or channel cases in contrast to the compared schemes.

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Section: Related Workmentioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

Section: Endnotesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Power minimization for OFDM modulated two-way amplify-and-forward relay wireless sensor networks

Bao

2017

J Wireless Com Network

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“…Meanwhile, one of the technologies for enhancing the secrecy performance is to transmit artificial noise by jammers to interfere eavesdroppers [9]. The authors in [10,11] recently considered the PLS with the AN by treating energy harvesting (EH) receivers as potential eavesdroppers. A secure MISO SWIPT system was proposed in [12], where an artificial noise is embedded to the information bearing signal to interfere the eavesdroppers and to harvest power by all receivers.…”

Section: Introductionmentioning

confidence: 99%

Physical Layer Security and Optimal Multi-Time-Slot Power Allocation of SWIPT System Powered by Hybrid Energy

Guo¹,

Li²,

Zhao³

2017

Information

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Abstract:In this paper, a new approach is proposed to solve the constrained optimization problem of saving grid energy and increasing safety in a simultaneous wireless information and power transfer (SWIPT) system. The traditional grid energy is combined with the renewable energy to form a hybrid energy, which provides power for the system to achieve green wireless transmission. The transfer process of SWIPT system is divided into multiple time slots. The renewable energy is harvested and stored in battery at each time slot. A multi-time-slot artificial noise-assisted transmission strategy is proposed to reduce the signal to noise ratio (SNR) of eavesdropping link. A power allocation algorithm based on multi-time-slot golden section is given, which performs onedimensional search on the power ratio of artificial noise to determine the transmit power of source node. And then the allocation algorithm is utilized to dynamically configure the harvested renewable energy for each time slot. When the battery capacity is constant, the maximum renewable energy is being used to reduce the grid power consumption. Finally, the performances of proposed schemes are evaluated by simulations in terms of various tradeoffs.

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Secure communication with joint resource allocation, relay and jammer selection in OFDM‐based cooperative networks

Liu

2021

Int J Communication

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Summary This paper considers an orthogonal frequency division multiplexing (OFDM) based cooperative network, where a source node communicates with a destination node with the help of multiple intermediate nodes, in the presence of an eavesdropper. Each intermediate node is assumed to be able to act as a relay or a jammer to improve the physical layer security. The problem of joint subcarrier allocation, power allocation, and mode selection to maximize the sum secrecy rate is investigated. We first reformulate the problem of subcarrier allocation and intermediate node mode selection as a three‐sided matching game and propose an algorithm that achieves a stable matching. Then, the sum secrecy rate is further improved by proposing a heuristic algorithm to switch the modes of the intermediate nodes. Finally, an iterative power allocation algorithm is proposed. It is verified by simulation results that the proposed algorithm outperforms various benchmark algorithms such as the equal subcarrier allocation algorithm, the pure relay selection algorithm, and the random relay selection algorithm, especially when the transmit power limit is high and the number of intermediate nodes is large.

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Secure Resource Allocation for OFDMA Two-Way Relay Wireless Sensor Networks Without and With Cooperative Jamming

Cited by 142 publications

References 31 publications

Power minimization for OFDM modulated two-way amplify-and-forward relay wireless sensor networks

Power minimization for OFDM modulated two-way amplify-and-forward relay wireless sensor networks

Physical Layer Security and Optimal Multi-Time-Slot Power Allocation of SWIPT System Powered by Hybrid Energy

Secure communication with joint resource allocation, relay and jammer selection in OFDM‐based cooperative networks

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