On the Performance of Low-Altitude UAV-Enabled Secure AF Relaying With Cooperative Jamming and SWIPT

Mamaghani, Milad Tatar; Hong, Yi

doi:10.1109/access.2019.2948384

Cited by 77 publications

(54 citation statements)

References 42 publications

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“…M. Tatar Mamaghani et al propose a novel cooperative secure unmanned aerial vehicle (UAV) aided transmission protocol. In order to improve physical-layer security and transmission reliability, they adopt destinationassisted cooperative jamming as well as SWIPT at the UAVmounted relay [10]. Xiaobao Zhou et al introduced the energy sustaining strategy to enhance physical layer security of directional modulation (DM) system.…”

Section: A Related Work and Motivationmentioning

confidence: 99%

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Relay Cooperative Beamforming Algorithm Based on Probabilistic Constraint in SWIPT Secrecy Networks

Xie

Jin

et al. 2020

IEEE Access

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We explore physical layer security of simultaneous wireless information and power transfer (SWIPT) relay network in this paper. Modeling channel error between relay and eavesdroppers (Eves) as random channel state information (CSI) error, we present an algorithm to optimize secret rate of SWIPT in the constraints of relay forward power, receiver signal-to-interference-plus-noise ratio (SINR) and Eves SINR. A slack variable is introduced to decompose original non-convex problem into upper and lower sub-problems, meanwhile, Bernstein-type inequality is used to convert probability constraint of lower subproblems to linear matrix inequality constraints. Simulation experiments show that the proposed algorithm obtains higher secret rate than that of zero-forcing algorithm and worst-case algorithm. INDEX TERMS SWIPT; Bernstein inequality; energy harvesting (EH); Amplify and forward (AF) relay; secret communication;

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Section: A Related Work and Motivationmentioning

confidence: 99%

“…Citation information: DOI 10.1109/ACCESS.2020.3026359, IEEE Access Zhentao Hu et al: Relay Cooperative Beamforming Algorithm Based on Probabilistic Constraint in SWPIT Secrecy Networks y e,k = h T re,k D βα h sr P s s+h T re,k D βα n a +h T re,k D β n c +n e,k (8) So, SINR of Rx and Eves is described as(9) and(10), respectively.…”

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confidence: 99%

Relay Cooperative Beamforming Algorithm Based on Probabilistic Constraint in SWIPT Secrecy Networks

Xie

Jin

et al. 2020

IEEE Access

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“…In general terms, there is a relationship between P r and d through a power decay exponent or path loss exponent, γ, and hence a particular power decay law can be derived. This rate of power decay is usually † It is worth mentioning that the small-scale fading addressed in [3] is associated with an environment where there exists a set of random propagation paths produced by natural or artificial objects, and when there is a dominant path, the fading statistics follow a Rician distribution [4]. The random nature of this environment implies that the path loss attenuation is modeled in a probabilistic form instead of a deterministic approach.…”

Section: Power Decaymentioning

confidence: 99%

“…Nevertheless, non-line-of-sight (NLOS) communications can be present as well, particularly when UAVs fly at low altitude in hilly zones or urban and suburban areas (in other words, NLOS conditions implies that natural or artificial obstructions can be present in the propagation path between terminals). Moreover, Tatar Mamaghani and Hong [3] pointed out that at low-altitude the UAV propagation channel presents small-scale Rician fading with a probabilistic path loss attenuation † . See [3,[5][6][7] for LOS or NLOS approaches taken for different examples of UAVs implementations.…”

Section: Introductionmentioning

confidence: 99%

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Propagation Characteristics for Uavs Operating at Short Range and Low Altitude

Galván-Tejada¹,

Aviles-Mejia²,

Orozco-Lugo³

et al. 2020

PIER C

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Propagation mechanisms for short range, low altitude conditions are reviewed for their use in communications of unmanned aerial vehicles (UAVs). This study is based on measurements conducted in an obstacle-free area. The testbed is made up of a testing UAV (in particular a drone) and a set of four ground station terminals (GSTs) located in a football field; the antenna heights of radios (onboard the drone and GSTs) are equal to 1.4 m, and the maximum distance between them is 50 m. Under these conditions, a plane earth geometry is well suited, and therefore the two-ray propagation model is considered. Measurement results for a radial configuration of the drone with respect to a ground station follow the trend of this model, but with a shift, which is attributed to the scattering from the grass. Then, an adjusted two-ray model is proposed for which experiments report good results. For another configuration where the drone has different positions in a square area of 30 × 30 m and there are four ground stations in the corners of the square, the general trend of the power decay of measurement results follows this model, but in some positions a difference around it is found even for locations at the same distance drone-GTSs. This behavior is attributed to the interaction of the print circuit board to the radiation characteristics of the antenna used in the radios. Thus, this effect is also analyzed by simulations, whose results show a deformation of the antenna radiation pattern, concentrating the energy in a certain direction and reducing it in another.

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Joint altitude, power control, and bandwidth allocation optimization for unmanned aerial vehicle‐enabled reliable communications

Wang

et al. 2020

Trans Emerging Tel Tech

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Unmanned aerial vehicles (UAVs) as aerial relays have found many applications in the current communication network. Since the air‐to‐ground (AtG) link differs from the terrestrial link, ensuring a reliable AtG transmission remains to be a meaningful issue. This article investigates that a UAV works as an aerial relay to forward information from multiple access points to multiple remote base stations in an emergency situation. Using the full‐duplex decode‐and‐forward relaying mode, we formulate a problem to minimize the maximum outage probability among all links, jointly optimizing the UAV altitude, power control, and bandwidth allocation. The outage probability function takes into account the line‐of‐sight probability‐based AtG fading and the self‐interference introduced by full‐duplex relaying, both of which make our formulated problem nonconvex. We reformulate the outage probability function into a more tractable function. Then, we decouple the original problem into two subproblems, that is, altitude optimization as well as power control and bandwidth allocation. Each subproblem is solved by the successive convex optimization technique, and an overall iteration algorithm is proposed to solve the original problem based on the block coordinate descent theory. Simulation results reveal the reliability gain of our proposed algorithm compared with our designed benchmark. Besides, the optimal UAV three‐dimensional location that minimizes the global min‐max outage probability is found by numerical simulations. Finally, the average throughput gain can also be obtained by our proposed algorithm.

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On the Performance of Low-Altitude UAV-Enabled Secure AF Relaying With Cooperative Jamming and SWIPT

Cited by 77 publications

References 42 publications

Relay Cooperative Beamforming Algorithm Based on Probabilistic Constraint in SWIPT Secrecy Networks

Relay Cooperative Beamforming Algorithm Based on Probabilistic Constraint in SWIPT Secrecy Networks

Propagation Characteristics for Uavs Operating at Short Range and Low Altitude

Joint altitude, power control, and bandwidth allocation optimization for unmanned aerial vehicle‐enabled reliable communications

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