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361
CSI feedback algorithm based on RM-Net for massive MIMO systems in high-speed mobile environment
Published 2022-05-01Subjects: Get full text
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362
Design a Dual Polarizations MIMO Antenna Based on Decoupling Elements for 5G Smart-Phones
Published 2023-03-01“…Finally, a combination of LP and CP antennas is presented to form a dual polarization MIMO system. A MIMO system consists of 5 elements; 4 elements are LP and 1 element is a CP antenna. …”
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363
Joint symbol detection and channel estimation for MIMO-OFDM systems via the variational Bayes EM algorithm
Published 2010-01-01Subjects: “…MIMO-OFDM…”
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364
Theoretical and Experimental Study on Echo Fluctuation Suppression of a Cirrus Cloud by Millimeter Wave MIMO Radar
Published 2019-01-01“…However, video integrators lose the rapidly changing information of ice particles and reduce radar range resolution; thus, we propose the pace-diversity technique of MIMO radar to reduce the echo fluctuation, which could be validated by theoretical computation and experimental measurements.…”
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365
Design of full-connected hybrid precoding based on an equivalent channel in millimeter-wave massive MIMO system
Published 2021-01-01Subjects: “…massive MIMO…”
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366
A New Cooperative MIMO Scheme Based on SM for Energy-Efficiency Improvement in Wireless Sensor Network
Published 2014-01-01“…The multiple-input multiple-output (MIMO) technique has been proved as a good candidate for improving the energy efficiency, but it may not be feasible in WSN which is due to the size limitation of the sensor node. …”
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367
Optimizing Energy Efficiency in UPA-Assisted SWIPT Massive MIMO Systems Over Rician Fading Channels
Published 2025-01-01Subjects: Get full text
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368
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369
Digital and analog hybrid precoding technology combined with V-BLAST in multi-user massive MIMO system
Published 2016-10-01Subjects: “…massive MIMO…”
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370
Superimposed pilot-based channel estimation method combined with user scheduling for large-scale MIMO system
Published 2016-12-01Subjects: “…massive MIMO…”
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371
A massive MIMO-OTFS robust transmission scheme for vehicular networks using sensing-assisted communication
Published 2023-12-01“…For a multi-user integrated sensing and communication system in the network of vehicles, a robust sensing-assisted communication massive multiple-input multiple-output (MIMO) orthogonal time frequency space (OTFS) transmission scheme was proposed.Due to the limited sensing accuracy of the radar, errors existed in the channel state information (CSI) reconstructed based on sensing parameters.The transmission performance decreased as a result.To address this issue, the CSI in the delay doppler domain was reconstructed based on the sensing parameters by the transmitter firstly.And a robust beam forming scheme was designed considering the CSI error.Secondly, the channel estimation error and inter user interference were perceived by receivers based on sensing parameters.Then the robust receiver was designed by incorporating the perceived interference errors into the signal detector in an analytical way.Finally, numerical simulation results show that the proposed method effectively reduces the system bit error rate and increases the data reception rate of users.The proposed method improves the overall system performance in this situation.…”
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372
Automatic Calibration Using a Modified Genetic Algorithm for Millimeter-Wave Antenna Modules in MIMO Systems
Published 2020-01-01“…This study proposes a method for designing and calibrating a millimeter-wave (mm-wave) multiple-input multiple-output (MIMO) antenna module. Herein, we adopt a design example involving a 64-element MIMO antenna array arranged in a triangular lattice (instead of the commonly used rectangular lattice) to achieve a 3°dB enhancement in effective isotropic radiated power. …”
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373
Low-power transmission method for uplink millimeter-wave massive MIMO-NOMA system based on GSIC
Published 2023-01-01Subjects: Get full text
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374
Spatio-frequency domain opportunistic access in CR-MIMO system based on primary transmission mode information
Published 2012-01-01Subjects: Get full text
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375
Self-Interference Cancellation-Based Mutual-Coupling Model for Full-Duplex Single-Channel MIMO Systems
Published 2014-01-01“…The measurement results indicate that the proposed MIMO system can suppress the self-interference and mutual-interference signals with the reduction of 31 dB received power.…”
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376
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377
Golden code based transmission schemes and decoding methods for MIMO downlink system with finite-bit feedback
Published 2018-11-01Subjects: “…MIMO system…”
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378
Beyond Single-User Scheduling: Exploiting Massive MIMO for Concurrent Data Delivery With Minimum Age of Information
Published 2025-01-01Subjects: Get full text
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379
Resource optimization of secure energy efficiency based on mmWave massive MIMO-NOMA system with SWIPT
Published 2020-08-01“…The secure energy efficiency (SEE) problem was investigated for the millimeter wave (mmWave) multiple input multiple output (MIMO) non-orthogonal multiplex access (NOMA) systems with simultaneous wireless information and power transfer (SWIPT) in the presence of multiple legitimate receiver (LR) and an eavesdropper.LR was first grouped according to the channel state information and the cluster heads of each group were selected,then the LR of each cluster was served by each beam with NOMA and hybrid precoding technology.Based on this,a SEE maximization problem was formulated by optimizing power allocation and power splitting factors.The Dinkelbach algorithm and first order Taylor approximation were proposed to transform the original non-convex problem into a convex one,and an iterative algorithm was developed to solve it.Finally,numerical results show that the proposed scheme can effectively improve the SEE.…”
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380
Modeling and Performance Analysis of Energy Efficiency Binary Power Control in MIMO-OFDM Wireless Communication Systems
Published 2011-09-01“…The energy efficiency optimization of the binary power control scheme for MIMO-OFDM wireless communication systems is formulated, and then a global optimization solution of power allocation is derived. …”
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