Two key rate and security degree-aware schemes based on hybrid relay for key services are proposed to improve the success ratio in quantum key distribution optical network. Simulation results show that the schemes per...
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Aiming at the current distributed array subarray optimization design and DOA estimation problem, a robust and effective distributed array subarray optimization method is proposed, and a discrete quantum electromagneti...
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A dual-probe structure is designed, and a differential compensation algorithm is proposed. It can effectively suppress the noise of Photon Doppler Velocimetry(PDV). Through the differential compensation algorithm, the...
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Dielectric barrier discharge(DBD)plasma actuators are widely used in active flow control due to their simple design and rapid ***,they need more effectiveness and discharge *** overcome these limitations,a sector-shap...
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Dielectric barrier discharge(DBD)plasma actuators are widely used in active flow control due to their simple design and rapid ***,they need more effectiveness and discharge *** overcome these limitations,a sector-shaped dielectric barrier discharge(SS-DBD)plasma actuator with an adjustable jet angle was developed to enhance flow control *** flow field dynamics induced by the SS-DBD plasma actuator were quantitatively analyzed using particle image velocimetry(PIV).Experimental investigations showed that precise adjustments to the actuation voltage can modulate the maximum velocity of the induced ***,a quasi-linear relationship between the sector-shaped angles of the SS-DBD and the deflected jet angles was established,indicating that changes in the sector-shaped angles directly influence the direction of the deflected *** correlation enables precise control over jet angles,significantly enhancing flow control by adjusting the SS-DBD-PA's sector-shaped angle.
Rate-splitting multiple access(RSMA)can cope with a wide range of propagation conditions in multigroup multicast communications through rate splitting *** breakthrough the grouprate limited bottleneck,reconfigurable i...
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Rate-splitting multiple access(RSMA)can cope with a wide range of propagation conditions in multigroup multicast communications through rate splitting *** breakthrough the grouprate limited bottleneck,reconfigurable intelligent surface(RIS)technique can be introduced to assist wireless communications through enhancing the channel *** RIS-aided RSMA multigroup multicasting,how to provide fair and high-quality multiuser service under power and spectrum constraints is *** this paper,we propose a max-min fair RIS-aided rate-splitting multiple access(MMF-RISRSMA)scheme for multigroup multicast communications,where the rate fairness is obtained by maximizing the minimum *** doing so,we jointly optimize the beamformers,the rate splitting vector at the transmitter,as well as the phase shifts at *** solve it,we divide the original optimization problem into two subproblems and alternately optimize the *** beamforming and rate splitting optimization subproblem is solved by using the successive convex approximation *** phase shift optimization subproblem is solved through the penalty function method to achieve a rank-one locally optimal *** demonstrate that the proposed MMF-RIS-RSMA scheme can obtain significant performance gain in terms of the minimum group-rate.
We propose a demand-sensitive hierarchical task offloading (DS-HTO) method to optimize the latency, spectrum occupation ratio, and resource utilization ratio in collaborative cloud-edge elastic optical networks (CCE-E...
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The traditional Beetle Antennae Search (BAS) algorithm exhibits strong randomness in intelligent agent path planning, resulting in issues such as low search efficiency and poor path practicability. To address these is...
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A reconfigurable feed network for multi-polar antennas is proposed in this article. It uses PIN diodes to make reconfigurable structure and change the output. The network can produce four kinds of output signal with o...
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An efficient and real-time simulation method is proposed for the dynamic electromagnetic characteristics of cluster targets to meet the requirements of engineering practical ***,the coordinate transformation method is...
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An efficient and real-time simulation method is proposed for the dynamic electromagnetic characteristics of cluster targets to meet the requirements of engineering practical ***,the coordinate transformation method is used to establish a geometric model of the observation scene,which is described by the azimuth angles and elevation angles of the radar in the target reference frame and the attitude angles of the target in the radar reference ***,an approach for dynamic electromagnetic scattering simulation is ***,a fast-computing method based on sparsity in the time domain,space domain,and frequency domain is *** method analyzes the sparsity-based dynamic scattering characteristic of the typical cluster *** error between the sparsity-based method and the benchmark is small,proving the effectiveness of the proposed method.
Quantum error correction is a technique that enhances a system’s ability to combat noise by encoding logical information into additional quantum bits,which plays a key role in building practical quantum *** XZZX surf...
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Quantum error correction is a technique that enhances a system’s ability to combat noise by encoding logical information into additional quantum bits,which plays a key role in building practical quantum *** XZZX surface code,with only one stabilizer generator on each face,demonstrates significant application potential under biased ***,the existing minimum weight perfect matching(MWPM)algorithm has high computational complexity and lacks flexibility in large-scale ***,this paper proposes a decoding method that combines graph neural networks(GNN)with multi-classifiers,the syndrome is transformed into an undirected graph,and the features are aggregated by convolutional layers,providing a more efficient and accurate decoding *** the experiments,we evaluated the performance of the XZZX code under different biased noise conditions(bias=1,20,200)and different code distances(d=3,5,7,9,11).The experimental results show that under low bias noise(bias=1),the GNN decoder achieves a threshold of 0.18386,an improvement of approximately 19.12%compared to the MWPM *** high bias noise(bias=200),the GNN decoder reaches a threshold of 0.40542,improving by approximately 20.76%,overcoming the limitations of the conventional *** demonstrate that the GNN decoding method exhibits superior performance and has broad application potential in the error correction of XZZX code.
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