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Journal articles on the topic 'Multipleinput multiple-output'

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1

Mai, Nghia Thi, Kou Yamada, Yoshinori Ando, Iwanori Murakami, and Tatsuya Hoshikawa. "A Design Method for Two-Degree-of-Freedom Modified Smith Predictors for Multiple-Input/Multiple-Output Time-Delay Plants." Key Engineering Materials 497 (December 2011): 221–33. http://dx.doi.org/10.4028/www.scientific.net/kem.497.221.

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The modified Smith predictor is well known as an effective time-delay compensator fora plant with large time-delays, and several papers on the modified Smith predictor have been published.Recently, the parameterization of all stabilizing modified Smith predictors for time-delay plantswas obtained by Yamada et al. But, their method cannot specify the input-output characteristic andthe feedback characteristic separately. From the practical point of view, it is desirable that the inputoutputcharacteristic and the feedback characteristic are specified separately. In this paper, we proposethe param
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2

Sakanushi, Tatsuya, Kou Yamada, Yoshinori Ando, Shun Matsuura, and Jie Hu. "A Design Method for Simple Repetitive Controllers for Multiple-Input/Multiple-Output Time-Delay Plants." ECTI Transactions on Electrical Engineering, Electronics, and Communications 10, no. 1 (2011): 48–58. http://dx.doi.org/10.37936/ecti-eec.2012101.170457.

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The simple repetitive control system proposed by Yamada et al. is a type of servomechanism for the periodic reference input. That is, the simple repetitive control system follows the periodic reference input with small steady state error, even if a periodic disturbance or an uncertainty exists in the plant. In addition, simple repetitive control systems make transfer functions from the periodic reference input to the output and from the disturbance to the output have finite numbers of poles. In addition, Yamada et al. clarified the parameterization of all stabilizing simple repetitive controll
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3

Olabode, Idowu-Bismark, Idachaba Francis, and A. Atayero Aderemi. "Large-scale parameter modelling for millimeter-wave multipleinput multiple-output channel in 5G ultra-dense network." Indonesian Journal of Electrical Engineering and Computer Science 26, no. 2 (2022): 794–807. https://doi.org/10.11591/ijeecs.v26.i2.pp794-807.

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Network densification (ND) in 5G has been suggested as a solution to improve network capacity. ND has small cell backhaul as its bottleneck in the ensuing ultra-dense network (UDN). Due to the new deployment scenarios of small cells, it becomes necessary to thoroughly investigate the radio-propagation characteristics of the new transmission path between the base station and the small cells. The problem of the impact of small cell height on the backhaul large-scale parameters under typical outdoor-toindoor (high-rise) and outdoor-to-outdoor (street canyon) scenarios was first investigated. Next
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4

Tuzlukov, Vyacheslav. "Interference Cancellation for MIMO Systems Employing the Generalized Receiver with High Spectral Efficiency." WSEAS TRANSACTIONS ON SIGNAL PROCESSING 17 (March 31, 2021): 1–15. http://dx.doi.org/10.37394/232014.2021.17.1.

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In this paper, we investigate the performan-ce in terms of symbol error probability (SEP) of multipleinput multiple-output (MIMO) systems employing the ge-neralized receiver with high spectral efficiency. In particular, we consider the coherent detection of M-PSK signals in a flat Rayleigh fading environment. We focus on spectrally efficient MIMO systems where after serial-to-parallel con-version, several sub-streams of symbols are simultaneously transmitted by using an antenna array, thereby increasing the spectral efficiency. The reception is based on linear mi-nimum mean-square-error (MMSE)
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5

Chen, Sheng. "B-Spline Neural Network Assisted Space-Time Equalization for Single-Carrier Multiuser Nonlinear Frequency-Selective MIMO Uplink." WSEAS TRANSACTIONS ON COMMUNICATIONS 21 (June 3, 2022): 155–69. http://dx.doi.org/10.37394/23204.2022.21.20a.

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This paper designs a nonlinear space-time equalizer based on B-spline neural network (BSNN) for the singlecarrier high-throughput multiuser frequency-selective multipleinput multiple-output (MIMO) nonlinear uplink. Specifically, based on a BSNN parametrization of the nonlinear high power amplifiers (NHPAs) at mobile terminals’ transmitters, a novel nonlinear identification scheme is developed to estimate the nonlinear dispersive MIMO uplink channel, which includes the BSNN models for the NHPAs at transmitters as well as the frequency-selective MIMO channel impulse response (CIR) matrix. Furthe
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6

Bakhshi, Gholamreza, Reza Saadat, and Kamal Shahtalebi. "Modeling and Simulation of MIMO Mobile-to-Mobile Wireless Fading Channels." International Journal of Antennas and Propagation 2012 (2012): 1–13. http://dx.doi.org/10.1155/2012/846153.

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Analysis and design of multielement antenna systems in mobile fading channels require a model for the space-time cross-correlation among the links of the underlying multipleinput multiple-output (MIMO) Mobile-to-Mobile (M-to-M) communication channels. In this paper, we propose the modified geometrical two-ring model, a MIMO channel reference model for M-to-M communication systems. This model is based on the extension of single-bounce two-ring scattering model for flat fading channel under the assumption that the transmitter and the receiver are moving. Assuming single-bounce scattering model i
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7

Martelli, Taborri, Del Prete, Palermo, and Rossi. "Quantifying Age-Related Differences of Ankle Mechanical Properties Using a Robotic Device." Robotics 8, no. 4 (2019): 96. http://dx.doi.org/10.3390/robotics8040096.

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A deep analysis of ankle mechanical properties is a fundamental step in the design of an exoskeleton, especially if it is to be suitable for both adults and children. This study aims at assessing age-related differences of ankle properties using pediAnklebot. To achieve this aim, we enrolled 16 young adults and 10 children in an experimental protocol that consisted of the evaluation of ankle mechanical impedance and kinematic performance. Ankle impedance was measured by imposing stochastic torque perturbations in dorsi-plantarflexion and inversion-eversion directions. Kinematic performance was
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8

Huu, Ai Duong, Loi Nguyen Van, and Ty Luong Khanh. "Misalignment fading effects on the ACC performance of relayassisted MIMO/FSO systems over atmospheric turbulence channels." International Journal of Electrical and Computer Engineering (IJECE) 12, no. 1 (2022): 966–73. https://doi.org/10.11591/ijece.v12i1.pp966-973.

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The continuous development of internet of things (IoT) technology enables many devices to be interconnected through the external environment. Meanwhile, 5G technology provides an enhanced quality of services with high data transmission rates, requiring IoT implementation in the 5G architecture. Free-space optical communication (FSO) is considered a promising technique that can provide high-speed communication links, so FSO is an optimal choice for wireless networks to fulfill the full potential of 5G technology, providing speeds of 100 Gb/s or more. By implementing 5G features in IoT, IoT cove
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9

Ahmed, Furqan, Alexis A. Dowhuszko, and Olav Tirkkonen. "Self-Organizing Algorithms for Interference Coordination in Small Cell Networks." IEEE Transactions on Vehicular Technology PP, no. 99 (2017): 1–14. https://doi.org/10.1109/TVT.2017.2695400.

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This paper discusses novel joint (intracell and intercell) resource allocation algorithms for self-organized interference coordination in multicarrier multiple-input multiple-output (MIMO) small cell networks. The proposed algorithms enable interference coordination autonomously, over multiple degrees of freedom, such as base station transmit powers, transmit precoders, and user scheduling weights. A generic α-fair utility maximization framework is considered to analyze performance-fairness tradeoff and to quantify the gains achievable in interference-limited networks. The proposed scheme invo
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10

Seung-Jun, Yu, Ahn Jang-Kyun, Lee Eui-Young, and Song Hyoung-Kyu. "A Novel Design for Hybrid Space-Time Block Codes and Spatial Multiplexing Scheme." International Journal of Electrical, Electronic and Communication Sciences 5.0, no. 12 (2011). https://doi.org/10.5281/zenodo.1329597.

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Space-time block codes (STBC) and spatial multiplexing (SM) are promising techniques that effectively exploit multipleinput multiple-output (MIMO) transmission to achieve more reliable communication and a higher multiplexing rate, respectively. In this paper, we study a practical design for hybrid scheme with multi-input multi-output orthogonal frequency division multiplexing (MIMOOFDM) systems to flexibly maximize the tradeoff between diversity and multiplexing gains. Unlike the existing STBC and SM designs which are suitable for the integer multiplexing rate, the proposed design can achieve
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11

"Performance of BER with Different Diversity Techniques for Millimeter-Wave Communication System." International Journal of Innovative Technology and Exploring Engineering 8, no. 6S4 (2019): 1149–52. http://dx.doi.org/10.35940/ijitee.f1238.0486s419.

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In a communications system, a diversity technique is used to enhance the reliability of a message signal by using at least two channels with different characteristics. In this paper, all four possible scenarios are considered: Single-input and singleoutput (SISO), single input and multi-output (SIMO), multipleinput and single-output (MISO), Multiple-input and multiple output (MIMO) systems. Antenna arrays will be used to reduce BER and improve the performance of the system using array gain in the line of sight channel for 60 GHz frequency in an indoor scenario. Single input and single output a
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12

Pandey, Ashish, Aakash Sehgal, Vinay Kumar, and Akhilendra Pratap Singh. "Design and optimization of dielectric resonator based MIMO antenna with beam tilting at mm-wave for enhanced 5G communication using machine learning." Physica Scripta, October 11, 2024. http://dx.doi.org/10.1088/1402-4896/ad8605.

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Abstract In this paper, a dual-port ceramic-based multipleinput multiple output (MIMO) antenna is designed at mm-wave-frequency. A partially reflecting surface (PRS) is applied over a dual-port antenna to achieve the beam tilting feature. Moreover, various machine learning (ML) algorithms are used to optimize the |S11| parameter of the proposed antenna. Aperture is used to excite the ceramic and produce HEM11δmode in cylindrical dielectric resonator antenna (CDRA). The antenna proposed includes an isolation level greater than 35dB amid ports, approves its working between 25.9-27.4 GHz. PRS til
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13

Amin, Ghazanfari. "Optimized Power Control for Massive MIMO with Underlaid D2D Communications." March 28, 2019. https://doi.org/10.5281/zenodo.2613239.

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In this work, we consider device-to-device (D2D) communication that is underlaid in a multi-cell massive multipleinput multiple-output (MIMO) system and propose a new framework for power control and pilot allocation. In this scheme, the cellular users (CUs) in each cell get orthogonal pilots which are reused with reuse factor one across cells, while all the D2D pairs share another set of orthogonal pilots. We derive a closed-form capacity lower bound for the CUs with different receive processing schemes. In addition, we derive a capacity lower bound for the D2D receivers and a closed-form appr
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14

Yang, Ping, Yue Xiao, Ming Xiao, and Yong Liang Guan. "Adaptive Spatial Modulation MIMO Based on Machine Learning." September 7, 2019. https://doi.org/10.1109/JSAC.2019.2929404.

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Abstract—In this paper, we propose a novel framework of low-cost link adaptation for spatial modulation multipleinput multiple-output (SM-MIMO) systems-based upon the machine learning paradigm. Specifically, we first convert the problems of transmit antenna selection (TAS) and power allocation (PA) in SM-MIMO to ones-based upon data-driven prediction rather than conventional optimization-driven decisions. Then, supervised-learning classifiers (SLC), such as the K-nearest neighbors (KNN) and support vector machine (SVM) algorithms, are developed to obtain their statistically-consistent so
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15

Mursia, Placido, Italo Atzeni, Mari Kobayashi, and David Gesbert. "D2D-Aided Multi-Antenna Multicasting under Generalized CSIT." February 3, 2021. https://doi.org/10.5281/zenodo.4497841.

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Multicasting, where a base station (BS) wishes to convey the same message to several user equipments (UEs), represents a common yet highly challenging wireless scenario. In fact, guaranteeing decodability by the whole UE population proves to be a major performance bottleneck since the UEs in poor channel conditions ultimately determine the achievable rate. To overcome this issue, two-phase cooperative multicasting schemes, which use conventional multicasting in a first phase and leverage device-to-device (D2D) communications in a second phase to effectively spread the message, have been extens
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16

"The MIMO Data Transfer Line with Seven-Frequency Octonion Carrier." Engineering: Open Access 2, no. 3 (2024): 01–23. http://dx.doi.org/10.33140/eoa.02.03.01.

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Currently, with the development of public relations and production systems, there is a need to increase the capacity of communication systems and information transmission. It has been shown theoretically that it is possible to increase throughput by using multidimensional signals in space instead of real signals on a plane. It is now accepted that a multidimensional space, MultipleInput Multiple-Output (MIMO), can be formed using multiple antennas to transmit and receive in physical space. However, as physicists point out, such space is three-dimensional, and with the addition of time it is fo
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