In this paper, we propose a relay cooperation scheme for backscatter communication systems performance enhancement, in which one user backscatters incident signals from power beacon (PB) to and receiver simultaneously, then the decodes received forwards decoded receiver. We consider two cases that is with/without an embedded energy source. particular, if does not have source, harvesting phase required, during harvests PB while information first formulate system throughput maximization...

Most existing deep learning (DL) based direction-of-arrival (DOA) estimation methods treat direction finding problem as a multi-label classification task and the output of neural network is probability spectrum where peaks indicate true DOAs. These essentially belong to grid-based may encounter grid mismatch effect. In this paper, we focus on gridless DL DOA under generalized linear array which can be regarded uniform (ULA) with/without "holes". By using Toeplitz structure, convolutional...

In this paper, we propose a novel deep learning (DL)-based gridless direction-of-arrival (DOA) estimation method for generalized linear arrays using residual attention network (RAN) and transfer (TL). The proposed can improve the DOA performance in both low high signal-to-noise ratio (SNR) regions by focusing on important features input avoiding problems of gradient vanishing degradation. Moreover, introduce idea TL to reduce complexity costs training. experimental results demonstrate...

In recent years, ecotourism has gained significant popularity as a sustainable form of tourism, prompting many destinations to promote their natural and cultural heritage through slogans. This study focuses on the localization strategies slogans from perspective Eco-Translatology, with particular emphasis Zhangjiajie National Forest Park other destinations. theoretical framework that integrates ecological principles into translation studies, provides robust foundation for analyzing how are...

To develop new nematicides, amide derivatives with oxazole/isoxazole were synthesized via scaffold-hopping as succinate dehydrogenase (SDH) inhibitors. The nematicidal activities of these target compounds tested against Bursaphelenchus xylophilus, Aphelenchoides besseyi, and Ditylenchus destructor. Some the showed excellent activities. Compound B21 had LC50 values 3.2 mg/L for B. 11.5 A. 10.5 D. exerted a pronounced inhibitory effect on feeding, reproduction, embryonic development...

Physical layer security and full duplex have been two widely applied techniques in wireless communications community, where the physical can prevent eavesdropping without upper data encryption, while improve spectrum efficiency through simultaneous transmission reception. In this paper, we jointly consider by investigating cross-layer optimization problem to maximize secrecy rate multi-hop network. This combination aims both of conventional systems at same time. We first construct a model...

Ocean sound speed is important for underwater acoustic applications, such as communications, navigation and localization, where the assumption of uniformly distributed profiles (SSPs) generally used greatly degrades performance systems. The acquisition SSPs necessary corrections ray propagation paths. However, inversion challenging due to intricate relations interrelated physical ocean elements suffers from high costs calculations hardware deployments. This paper proposes a novel method...

In recent years, there has been great interest from the cellular service providers to use unlicensed spectrum for their offerings. On other hand, existing users in these bands (e.g., Wi-Fi 5-GHz band) have serious concern that such coexistence will jeopardize quality. Although are some proposals on how achieve coexistence, they driven by and as remain many issues skepticism. this paper, we take a novel human-centric approach understand between LTE focusing human satisfaction. Through...

Spectrum sharing technology has been widely used for better spectrum efficiency. However, the interference issue between primary and secondary networks poses a significant concern. Semantic communication, being pivotal sixth-generation (6G) wireless exhibits remarkable robustness even under conditions of low signal-to-noise ratio (SNR). In this paper, intelligent resource allocation unmanned aerial vehicle (UAV)-enabled semantic communication with OFDM is investigated, where UAVs provide...

The advancement of integrated millimeter-wave products opens the possibility leveraging communications in 60-GHz band to meet unprecedented traffic demand WLAN. Despite vast bandwidth available, signals suffer from high attenuation and weak diffraction ability. Therefore, wireless communication at 60 GHz is characterized by inherent directivity susceptibility blockage. Multiple Access Point (AP) architecture proposed for WLAN enhance spatial reuse survive In presence multiple APs network,...

Glutathione S-transferases (GSTs) play crucial roles in the detoxification process and development of drug-resistance are proved to be important markers for various tumors. Different from previous probes, we developed a fluorescent probe enabling detection intracellular GSTs low GSH level environment by pre-treatment cells with thiol-scavengers.

Riemannian optimization has been widely used to deal with the fixed low-rank matrix completion problem, and metric is a crucial factor of obtaining search direction in optimization. This paper proposes new via simultaneously considering geometry structure scaling information, which smoothly varying invariant along equivalence class. The proposed can make tradeoff between information effectively. Essentially, it be viewed as generalization some existing metrics. Based on Riemanian metric, we...

Wireless fidelity (WiFi) and long term evolution (LTE) coexistence system has attracted significant attention recently. However, most studies on only consider the issues about downlink performance fairness between WiFi network LTE network. In this paper, we take a comprehensive consideration of both LTE, to propose downlink/uplink decoupling (DUDe) scheme for system. Through process modeling construction, problem formulation with reformulation, solution simulations, illustrate that DUDe can...

Cooperative communications (CC) based on network coding (NC) can significantly increase the capacity of wireless networks. In this paper, we investigate how to apply NC in multi-hop networks with multiple relay nodes and sessions achieve more practical general CC NC. Based NC, consider jointly optimize node selecting, scheduling flow routing a network. We not only construct mathematical model but also formulate maximum-minimum (Max-Min) optimization problem for it. Then reformulate solve it...

Cognitive Radio can achieve dynamic spectrum access by sensing. The paper proposes a new scheme to share employing OFDMA-based Radio. To show efficiency and fairness, the builds an Asymmetric-Nash-Bargain-Solution-Based utility function implement sharing algorithm based on sensing contribution weighted proportional fairness through two-user bargaining. simulation results that proposed approach is not only fair efficient allocation of resources but also help maximizing

AbstractFor a linear equality constrained convex optimization problem, we initially propose mixed primal-dual dynamical system with Hessian driven damping. This comprises second-order ordinary differential equation (ODE) α/t damping and for the primal variable, first-order ODE dual variable. Utilizing Lyapunov analysis approach, prove that all Lagrangian residual, objective residual feasibility violation enjoy fast convergence under general scaling coefficients. We further analyse rate...

IA has been widely regarded as a promising technique to handle mutual interference in wireless networks. Although there have many studies on IA, most of the results are limited single-hop scenario. To date, research networking community remains scarce. This stagnation underscores both technical barrier this area and critical need fill gap. article offers tutorial three different forms - spatial, temporal, frequency with focus their respective challenges, recent advances, open problems...

With the rapid innovations in design of transceiver for full duplex (FD) communications, benefits FD single-hop wireless communications have been widely shown. But a multi-hop network, with power control still need to disclose. The goal this paper is investigate energy efficiency (EE) performance scheduling network. In paper, we explore on EE networks under optimal through strict mathematical model, formulation and proof. First, an model constructed. Then, exploiting reformulation...

The main challenges of traffic object detection are the density individual objects and their vulnerability to environmental factors such as weather light intensity. For baseline YOLOv4 network with large computation, it is difficult run efficiently on GPU resource-constrained devices. Based this question, we propose a lightweight approach, called YoLite+. In MobileNet depthwise separable convolution used compress parameters network. Then approach utilizes negative phase information feature...

Cooperation has become an essential element in spectrum sharing between the primary and secondary networks. A new trend cooperation is to allow networks cooperate on node level for data forwarding. This paradigm allows pool network resources from both users each access a much richer infrastructure combined network. paper offers in-depth study of such node-level by explaining its optimal throughput curve—the maximum achievable users. We formulate problem as multicriteria optimization with...

This paper considers the problem of renewable energy allocation for a cellular backhaul network where each node can request from microgrid to forward traffic. Each includes multiple power suppliers (RPSs), which directly compete with other be sole supplier node. The operator needs specify storage level RPS along and wireless service price end users. Then, RPSs will determine their individual prices. is formulated as Stackelberg game between leader (the operator) followers (RPSs). We identify...

The technology of image recovery, as a part processing, becomes more and important. robust principle component analysis (RPCA) serves key problem for low‐rank matrix recovery. However, the existing methods solving RPCA are mostly based on nuclear norm minimisation. These have disadvantage that matrix's rank cannot be well approximated because they minimise all singular values. Moreover, these will lead to instability when images highly correlated. In this study, authors set up novel model...