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  1. 43681

    IRS-assisted full-duplex ISAC system beamforming design by LIU Qilie, WANG Long, XIN Yanan, FANG Jiacheng, CHEN Qianbin, TAO Yu

    Published 2024-07-01
    “…To address the issues of frequency switching differences between communication and sensing systems in traditional integrated sensing and communication (ISAC) scenarios, as well as the susceptibility of communication to obstruction by obstacles, the integration of full-duplex (FD) technology and intelligent reflecting surface (IRS) into the ISAC system was studied. …”
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  2. 43682

    A Noble Classification Framework for Data Glove Classification of a Large Number of Hand Movements by Yuhuang Zheng

    Published 2021-01-01
    “…The recognition of hand movements is an important method for human-computer interaction (HCI) technology, and it is widely used in virtual reality and other HCI areas. …”
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  3. 43683
  4. 43684
  5. 43685

    Thoughts on the standardization evolution of 5G NTN network architecture by Jiancheng SUN, Jiaying SUN, Deshan MIAO, Chunlin LI

    Published 2023-08-01
    “…In recent years, 5G has been commercialized around the world in a large scale.However, considering the cost and geographical restrictions, traditional 5G networks still have trouble in providing seamless global communication.To reach the global area coverage, satellite and 5G technology integration has become a new hot topic in the communication industry.In 3GPP, the first release of 5G NTN technical specifications based on transparent payload architecture has been completed.Firstly, the standardization status of 5G NTN network architecture was introduced.Secondly, the shortcomings or issues existing in the current network architecture of 5G NTN were analyzed.Finally, three 5G NTN network architecture enhancement and optimization schemes were proposed, which including IAB-based network architecture, NTN adaptive network architecture and NTN multi-connection network architecture for intersatellite link construction and data shunt.The proposed architectures aim to providing valuable suggestions and references for the subsequent research, standardization and network deployment of 5G NTN.…”
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  6. 43686

    Applications of Google Trends as a Data Source for Statistical Models by Klaudia Lenart

    Published 2024-10-01
    “…As technology advances, there is a growing number of potential data sources that can provide an alternative to traditional surveys. …”
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  7. 43687

    Trajectory planning of UUV-assisted UWOC systems based on DQN by Jiawei HU, Xiaoqian LIU, Xinke TANG, Yuhan DONG

    Published 2023-05-01
    “…As a key submarine-based communication platform, unmanned underwater vehicle (UUV) can facilitate underwater wireless optical communication (UWOC).However, fluctuating characteristics of water body, different water qualities, multi-user access present challenges to UUV-assisted UWOC systems, which could be alleviated by an appropriate path planning to maximize the system and each user performance.Deep reinforcement learning (DRL) technology was applied in the path planning of autonomous vehicles, a trajectory planning scheme for UUV-assisted UWOC systems was proposed.The UUV automatically decides the navigation direction through deep Q-network (DQN) method, thereby improving the communication capacity of the system and each user.The impact of distinct water qualities on the capacity enhancement was also investigated.Simulation results suggest that the outputted strategy of DQN can improve the link capacity of the system and each user.This capacity improvement in clear seawater is better than that in pure seawater but lower than that in coastal water.…”
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  8. 43688

    Stability Analysis and Chaos Control of Recycling Price Game Model for Manufacturers and Retailers by Ting Li, Dongyun Yan, Xiaogang Ma

    Published 2019-01-01
    “…By means of the simulation technology, the complexity of the recycling price in the system in the long-term competition has been demonstrated. …”
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  9. 43689

    Intelligent prediction method of network performance based on graph neural network by Yijiang LI, Huibiao YE, Renhua XIE, Jiali LOU, Danna ZHUANG, Chuanhuang LI

    Published 2022-03-01
    “…There are some problems in the traditional network performance prediction technology, such as incomplete network state acquisition and poor accuracy of network performance evaluation.Combined with the characteristics of graph neural network learning and reasoning network relational data and the captured global information of the network, on the basis of the current network performance prediction methods, an intelligent prediction method of network performance based on graph neural network was proposed.Aiming at the complex network information, through the research of network system abstraction and network performance modeling, the network information can be transformed into the graph space convolution was used to process the message passing process of graph network nodes to realize the relationship reasoning between network information.The graph neural network model for network performance prediction was studied, and a graph neural network architecture which could deal with traffic matrix, network topology, routing strategy and node configuration was proposed.Finally, the experiments show that the model can better achieve accurate prediction of the network performance including delay, jitter and packet loss rate.…”
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  10. 43690

    DIGITALIZATION OF KEY PROCESSES IN THE WOOD PROCESSING COMPANIES by Dražana Gašpar, Ivica Ćorić, Mirela Mabić

    Published 2023-11-01
    “… The wood processing industry is not immune to the ripple effects of information technology's constant and rapid growth. Companies from that industry are under more pressure than ever to use digital innovation to adapt to rapidly shifting markets, lead the charge in the energy transition, and speed up the implementation of Industry 4.0. …”
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  11. 43691
  12. 43692

    Research on the control strategy of multi-port DC/DC energy router for the energy Internet by Wenzhong MA, Guancheng LI, Kuitong ZHANG, Shujuan YANG, Mengdi WEI, Yuzhen TANG, Yucheng SONG, Lei DONG

    Published 2020-12-01
    “…The characteristics and shortcomings of the current multi-port direct current (DC) to DC (DC/DC) energy router were analyzed.A multi-port DC/DC energy router for the energy Internet was optimized and designed.Through the analysis of the operating voltage requirements under different working conditions,the full-bridge proportional design of the sub-module was proposed.On this basis,an alternating current (AC) to DC (AC/DC) decoupling control strategy to realize riding through the DC fault without de-blocking any devices was proposed.The multi-port DC/DC energy router was used to realize the interconnection of multiple DC power grids with different voltage levels.It not only retained the advantages of low cost and low loss of the traditional DC autotransformer,but also effectively improved the shortcomings that the DC autotransformer cannot ride through the DC fault.Finally,the simulation test was carried out in the MATLAB/Simulink environment to verify the stability of the technology in the normal operation,the feasibility of suppressing the DC fault and the effectiveness of the control strategy.…”
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  13. 43693
  14. 43694

    Quelle prise en compte des compétences collectives et distribuées dans la gestion des compétences professionnelles ? by Alexandre Largier, Catherine Delgoulet, Cécilia De la Garza

    Published 2008-05-01
    “…Work contexts should take into account technical specialties, changes in populations, changes in technology, etc. An efficient skills management system therefore ought to combine both individual and collective approaches in order to anticipate organizations that promote the development of collective and/or distributed skills, and training situations that promote their construction and transmission.…”
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  15. 43695

    On 6G and wide-area IoT by Xiaohu YOU, Hao YIN, Hequan WU

    Published 2020-03-01
    “…6G technology is still in its initial stage of research.It is expected that in the next few years,the world will gradually reach a consensus on visions and key technical parameters of 6G .Focusing on the further expansion of application areas and further enhancement of technical capability,the technical fields were summarized that may be involved in the future 6G radio access,including the coverage expansion based on the satellite-terrestrial integration,millimeter wave and terahertz communications,data-driven network artificial intelligence (AI) and security,large-scale cooperation and cell-free architecture innovation,etc.On this basis,some important technologies,such as ultra-high reliability and low latency,full dynamic radio resource allocation and centimeter level precise positioning,which need to be further broken through in the wide-area Internet of things (IoT) based on the public mobile communication system were analyzed and prospected.Finally,the conclusions were given.…”
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  16. 43696

    Research on computing resource allocation strategy for cloud radio access network based on demand forecasting by Zhipeng WANG, Bin CAO, Qinyu ZHANG

    Published 2019-12-01
    “…Cloud radio access network(CRAN) is a new network architecture commonly used in 5G network.It uses network function virtualization and software defined network technology to support end-to-end network slicing so that access network can share the same infrastructure.A computing resource allocation scheme based on virtualized network function(VNF) computing resource demand forecasting was proposed for cloud wireless network supporting end-to-end network slicing.Data-driven operation and maintenance framework established by the control plane collects network information and performs data processing to predict the demand for computing traffic in a period of time,which used the discrete particle swarm optimization based on best-fit-decreasing to dynamically and dynamically allocate CRAN computing resources,reducing the migration energy consumption and migration times of VNF.…”
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  17. 43697
  18. 43698
  19. 43699
  20. 43700

    A Multi-User Subcarrier Power Joint Allocation Algorithm Based on Rate Fairness by Jianwu Zhang, Lu Jin, Xiaorong Xu

    Published 2013-04-01
    “…With the rapid development of wireless communication technology,the demand for wireless resources increases quickly,and to improve the quality of service are required by users.Therefore,the intelligence is needed to carry out an effective compromise between user quality of service(QoS)requirements and wireless resource constraints in future communication systems.In order to enhance the spectral efficiency in cognitive radio network(CRN),multi-user subcarrier power joint allocation algorithm based on rate adaptive(RA)criterion in cognitive orthogonal frequency division multiplexing(OFDM)system was proposed in the constraint conditions of available subcarrier,secondary user(SU)power budget and rate fairness,with the consideration of rate fairness between SUs.This algorithm was separated into two steps with subcarrier and power allocation respectively.The proposed scheme could maximize link capacity with the consideration of the fairness among all SUs.Simulation results show that the joint allocation algorithm can get effective tradeoff between system throughput and the rate fairness of SU.…”
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