Showing 81 - 100 results of 205 for search 'Criterion Channel', query time: 0.11s Refine Results
  1. 81

    Effects of Erroneous CSI on the Performance of Multiple-Transmit Antenna Selection by Mingjie Zhuang

    Published 2015-01-01
    “…Meanwhile, the selection criterion that maximizes the channel Frobenius norm or minimizes the error probability of MTAS/MISO-STBC system is employed. …”
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    Article
  2. 82

    A Semantic Generalization of Shannon’s Information Theory and Applications by Chenguang Lu

    Published 2025-04-01
    “…Notably, the maximum semantic information criterion is equivalent to the maximum likelihood criterion and similar to the Regularized Least Squares criterion. …”
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  3. 83

    Maximum mean square deviation adaptive filtering algorithm with the same step-size via convex combination by Guo-sheng RUI, Jun MIAO, Yang ZHANG, Lin WANG

    Published 2012-03-01
    “…Aimed at poor tracking performance of NLMS filter and filter under time-varying channel,a same step-size convex combination of the maximum mean square deviation algorithm was presented.The algorithm convexly combined two different adaptive filters with the same step-size based on a criterion of maximum mean square deviation.So the proposed filter could keep good dynamic performance in the time-varying channel and stability of mean square characteristics in convergence stage.Theoretical analysis and simulation results show that in the sparse and non-sparse state the proposed algorithm indicates the fastest convergence rate compared with NLMS,PNLMS and IPNLMS algorithm.In the fuzzy state,the performance of proposed algorithm is superior to the above three.Additionally,the steady-state performance of mean square also keeps well.…”
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  4. 84

    Linear precoding for interference suppression in multi-cell multi-user TDD MIMO downlink by Zu-jun LIU, Jie-ling WANG, De-chun SUN, Ke-chu YI

    Published 2013-04-01
    “…To suppress multi-user interference (MUI) and inter-cell interference (ICI) existing in multi-cell multi-user TDD MIMO downlink,an interference suppression algorithm through designing precoder was proposed.Firstly,a precoding matrix was designed for MUI suppression,with the help of the QR decomposition of generalized MMSE channel inversion.And then the second precoding matrix was designed to suppress ICI and residual MUI,using a signal leakage criterion.The proposed algorithm could utilize TDD MIMO channel reciprocity,and thus did not require users' feedback information.The algorithm had been simulated in a multi-user TDD MIMO system composed of urban micro-cells.Simulation results show that,the proposed algorithm can effectively improve system capacity and user's average SINR.…”
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  5. 85

    OPTIMAL TRAFFIC MANAGEMENT FOR AIRCRAFT APPROACHING THE AERODROME LANDING AREA by I. B. Ivenin, A. S. Kurilenok

    Published 2018-04-01
    “…The given model of airfield and airfield zone is considered as the two-channel system of mass service with refusals in service. …”
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  6. 86

    An Energy-Efficient Multi-User’s Resource Allocation Scheme by Zhao Wang, Youming Li, Ting Zou, Xiaoqing Liu, Bin Chen

    Published 2013-04-01
    “…In wireless environment,the increases in the number of users and the demand for a higher rate have triggered rapidly booming energy consumption at the base station.Therefore,energy efficient design in wireless network has become very essential.An energy efficient multi-user OFDM downlink resource allocation scheme was studied,using the distributed way.Firstly,according to user’s average channel gain and the minimum requirements of user’s bits,subcarriers were allocated,combined with the idea of proposed energy-efficient criterion.Then better channels were assigned to each user in accordance with each user’s allocated subcarrier numbers.Again each user’s average bits were assigned on the user’s allocated subcarriers and optimal adjustment using energy-efficient criterion had to be made to ensure the minimum power.The simulation results show that under the conditions of satisfying bit-error rate and transmission rate for users,the power can be reduced by 5~6 dB in the proposed algorithm,compared with the power in the static frequency division multiple access resource allocation.Furthermore,the power can be reduced by 2~4 dB,compared with the power in a existing classical distributed algorithm.…”
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  7. 87

    Коммуникативные аспекты католических богослужений на русском языке by Małgorzata Wideł-Ignaszczak

    Published 2019-09-01
    “…The units were grouped according to the criterion of participation in the communication situation involving the sender, the receiver and the communication channel, i.e. liturgy.…”
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  8. 88

    NLO QCD predictions for t t ¯ γ $$ t\overline{t}\gamma $$ with realistic photon isolation by Daniel Stremmer, Malgorzata Worek

    Published 2025-01-01
    “…Our state-of-the-art NLO QCD results with the fixed-cone criterion allow us to reproduce the photon-isolation prescription employed in ATLAS and CMS. …”
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  9. 89

    EFFICIENCY OF LOGISTIC SYSTEMS by S. M Salum

    Published 2006-10-01
    “…The paper gives the concept of logistic distribution channel. The possibility of its selection is analyzed, and that is a significant reserve to improve efficiency of logistic processes.The paper considers efficiency of logistic and transport-technological systems on the basis of the relationship of aggregate gross revenue and aggregate costs of an enterprise.The paper cites a concept of economic criterion of efficiency describing the whole logistic chain, that is from the moment of primary raw materials output to consumption of products at all stages of production and transportation of primary raw materials, semi-finished and finished products.…”
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  10. 90

    Comparison of Methods for Determining Catchment Area Threshold for Water System Extraction by ZHENG Jiawei, CHEN Xingwei, LI Xiaocheng, RUAN Weifang

    Published 2023-01-01
    “…Most of the methods using digital elevation models (DEM) to extract water systems require the determination of catchment area thresholds.For a better understanding of the rationality and applicability of several commonly used determination methods of the catchment area threshold for water system extraction,the distance error between the real river source and the extracted one is used as a criterion to determine the rationality of the real water system extraction methods.Four main methods,namely,the drainage density method,the water-system fractal dimension method,the method of the minimum error at the river source,and the channel branching ratio method,are selected,and the Jinjiang River Basin on the southeast coast is taken as an example.The distance errors between the extracted river sources by different methods and the real river sources are compared.The results show that the visual discrimination of the catchment area threshold used by the drainage density method,water-system fractal dimension method,and channel branching ratio method has a large uncertainty,and the distance errors are large.In the method of the minimum error at the river source,the catchment area threshold is determined according to the minimum distance error between the extracted river source and the real one,which is unique.Hence,it is a more reasonable method among the four DEM-based real water system extraction methods.…”
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  11. 91

    ECCT: An Efficient-Cooperative ADHOC MAC for Cluster-Based TDMA System in VANETs by VanDung Nguyen, S. M. Ahsan Kazmi, Choong Seon Hong

    Published 2015-08-01
    “…Therefore, the clustering algorithms provide not only limited channel contention but also fair channel access within the cluster. …”
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  12. 92

    Hybrid Beamforming Grouping Sum-Rate Maximization Algorithm for Multiuser mmWave Massive MIMO Systems by Jian Liu, Xuan Yang, Qianfang Sun, Renmin Zhang, Yingjing Qian

    Published 2022-01-01
    “…Based on this, this paper proposes an improved low-complexity hybrid beamforming grouping sum-rate maximization (HBG-SRM) algorithm to achieve system sum-rate maximization under the premise that both BS and user side use hybrid beamforming architecture and the channel state information (CSI) of the downlink channel is perfect. …”
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  13. 93

    Multidimensional Particle Separation by Tilted-Angle Standing Surface Acoustic Waves—Physics, Control, and Design by Sebastian Sachs, Jörg König, Christian Cierpka

    Published 2025-01-01
    “…Using this improved channel design, the particle shape is identified as an additional separation criterion, rendering the continuous acoustofluidic particle separation as a multidimensional technology capable of selectively separating microparticles below 10 μm with regard to size, acoustic contrast, and shape.…”
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  14. 94

    Numerical investigation on vane leading edge impingement cooling performance under influences of ribs established between adjacent jets by Junfei Zhou, Guangtao Song, Lidanyang Zhao, Jinglei Xu, Zhe Wang

    Published 2024-11-01
    “…Results indicate that, with the application of ribs, the area-averaged Nusselt number increases about 4.3%–11.3% and the impingement heat transfer is more uniformly distributed along the target channel axis. When pursuing a larger heat transfer enhancement and a larger performance evaluation criterion (PEC), a larger rib diameter coupled with a larger rib to downstream jet distance is preferred, the largest PEC enhancement is about 8.1%.…”
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  15. 95

    A sleep staging model based on adversarial domain generalized residual attention network by Pengwei Zhang, Sijia Xiang, Kailei Hu, Jialing He, Jingxia Chen

    Published 2025-05-01
    “…In the feature extractor part, the channel attention network is combined with the residual block to selectively enhance the important features and the correlation between multi-channel physiological signals. …”
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  16. 96

    Hybrid-Driven Mechanism Based on Uncertain Network for Markov Jump System with Quantizations and Delay by Tian Tan, Jinfeng Gao, Jinxia Wang, Zhen Zhao, Miao Ma

    Published 2020-01-01
    “…This paper investigates the hybrid-driven mechanism problem for Markov jump system, where both channel quantization (BCQ) and network-induced delay based on uncertain network are considered. …”
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  17. 97

    Active control of sound by means of digital equalizers by W. CIESIELKA, A. GOŁAŚ

    Published 2014-03-01
    “…The article describes single-channel digital systems, enabling active sound control according to the set criterion. …”
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  18. 98

    Fault Feature Extraction of Rolling Bearing based on Blind Separation Noise Reduction by ITD and KICA by Liu Jiahui, Dong Xinmin, Li Jianfei

    Published 2018-01-01
    “…The PRC component will be decomposed by correlation coefficient criterion restructuring as the virtual noise channel. …”
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  19. 99

    Nonlinear transform coding for semantic communications by Ping ZHANG, Jincheng DAI, Yuming ZHANG, Sixian WANG, Xiaoqi QIN, Kai NIU

    Published 2023-04-01
    “…The modular design and limited processing mechanism of traditional communication systems limit the continuous improvement of end-to-end data transmission capability.For this reason, a new nonlinear transform coding framework for semantic communications was proposed.First, an end-to-end rate distortion optimization criterion for semantic communication was derived based on variational theory.Based on this, a nonlinear transform was designed to extract the compact representation of source data in the semantic latent space, and variable-rate nonlinear joint source-channel coding was implemented through the guidance of variational entropy model.Experiments show that semantic nonlinear transform coding can significantly improve the end-to-end data transmission performance and robustness, and is one of the key technologies to catalyze future semantic communications.…”
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  20. 100

    Nonlinear transform coding for semantic communications by Ping ZHANG, Jincheng DAI, Yuming ZHANG, Sixian WANG, Xiaoqi QIN, Kai NIU

    Published 2023-04-01
    “…The modular design and limited processing mechanism of traditional communication systems limit the continuous improvement of end-to-end data transmission capability.For this reason, a new nonlinear transform coding framework for semantic communications was proposed.First, an end-to-end rate distortion optimization criterion for semantic communication was derived based on variational theory.Based on this, a nonlinear transform was designed to extract the compact representation of source data in the semantic latent space, and variable-rate nonlinear joint source-channel coding was implemented through the guidance of variational entropy model.Experiments show that semantic nonlinear transform coding can significantly improve the end-to-end data transmission performance and robustness, and is one of the key technologies to catalyze future semantic communications.…”
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    Article