Variable Is Better Than Invariable: Sparse VSS-NLMS Algorithms with Application to Adaptive MIMO Channel Estimation by Guan Gui, Zhang-xin Chen, Li Xu, Qun Wan, Jiyan Huang, Fumiyuki Adachi

“…In this paper, we propose two stable sparse variable step-size NLMS (VSS-NLMS) algorithms to improve the accuracy of MIMO channel estimators. First, ASCE is formulated in MIMO-OFDM systems. …”
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A Lumped-Element Decoupling and Matching Network for a Four-Element Mobile Handset MIMO Antenna by Riku Kormilainen, Rasmus Luomaniemi, Anu Lehtovuori, Ville Viikari

“…The DMN is applied to a four-element MIMO antenna array located on one side of the mobile phone chassis. …”
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Improved Set-point Tracking Control of an Unmanned Aerodynamic MIMO System Using Hybrid Neural Networks by Oduetse Matsebe, David Mohammed Ezekiel, Ravi Samikannu

“…This paper is based on a system that optimizes the performance of an uncertain unmanned nonlinear Multi-Input Multi-Output (MIMO) aerodynamic plant called Twin Rotor MIMO System (TRMS). …”
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Design a Dual Polarizations MIMO Antenna Based on Decoupling Elements for 5G Smart-Phones by Haider Saad, Mahmood F. Mosleh, Raed Abd-Alhameed

“…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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Theoretical and Experimental Study on Echo Fluctuation Suppression of a Cirrus Cloud by Millimeter Wave MIMO Radar by Jinhu Wang, Junxiang Ge, Ming Wei, Hongbin Chen, Zexin Yang, Yushu Ren, Qilin Zhang, Hao Chen

“…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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A New Cooperative MIMO Scheme Based on SM for Energy-Efficiency Improvement in Wireless Sensor Network by Yuyang Peng, Jaeho Choi

“…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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Optimizing Energy Efficiency in UPA-Assisted SWIPT Massive MIMO Systems Over Rician Fading Channels by Mohammad Hassan Adeli, Dariush Abbasi-Moghadam, Hossein Fotouhi, S. Mohammad Razavizadeh

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MIMO Control Architectures for Secondary Voltage Regulation in Electrically Coupled Transmission Grids: Design and Dynamic Performance by Andrea Vicenzutti, Fabio Marzolla, Massimiliano Chiandone, Salvatore Tessitore, Cosimo Pisani, Giorgio M. Giannuzzi, Giorgio Sulligoi

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Automatic Calibration Using a Modified Genetic Algorithm for Millimeter-Wave Antenna Modules in MIMO Systems by Cheng-Nan Hu, Philip Lo, Chien-Peng Ho, Dau-Chyrh Chang

“…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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Self-Interference Cancellation-Based Mutual-Coupling Model for Full-Duplex Single-Channel MIMO Systems by Pawinee Meerasri, Peerapong Uthansakul, Monthippa Uthansakul

“…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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Beyond Single-User Scheduling: Exploiting Massive MIMO for Concurrent Data Delivery With Minimum Age of Information by Muhammad Fahad Ijaz, Umar Rashid, Omer Waqar

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Modeling and Performance Analysis of Energy Efficiency Binary Power Control in MIMO-OFDM Wireless Communication Systems by Yuming Wang, Xiaohu Ge, Chengqian Cao, Xi Huang, Frank Y. Li

“…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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Maximum Likelihood Angle-Range Estimation for Monostatic FDA-MIMO Radar with Extended Range Ambiguity Using Subarrays by Kaikai Yang, Sheng Hong, Qi Zhu, Yanheng Ye

“…The range ambiguity is a serious problem in monostatic FDA-MIMO radar, which can reduce the detection range of targets. …”
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Constellation Optimization for MIMO VLC System With Signal-Dependent Noise: Receiver-Side Design and Lookup Table Establishment by Jiaqi Wei, Yuan Wang, Nuo Huang, Yan-Yu Zhang, Yi-Jun Zhu, Wenliang Hao, Chen Gong

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Compact MIMO Microstrip Antennas for USB Dongle Operating in 2.5–2.7 GHz Frequency Band by Vladimir Ssorin, Alexey Artemenko, Alexander Maltsev, Alexey Sevastyanov, Roman Maslennikov

“…This paper considers design of microstrip MIMO antennas for an LTE/WiMAX USB dongle operating in the 2.5–2.7 GHz frequency band. …”
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Wideband Low-Profile 8 × 8 MIMO Antenna Based IFA Pair for Ultrathin 5G Smartphones by Hui Zhou, Di Wu, Mingmin Zhu, Yang Qiu, Guoliang Yu, Hao-Miao Zhou

“…In this paper, a wideband 8 × 8 MIMO antenna is proposed. The proposed antenna can realize the low profile of 4 mm and the 3.18–4.40 GHz broadband coverage only by adjusting the ground edge structure of the deformed inverted-F antenna. …”
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Deep Learning Model for CS-Based Signal Recovery for IRS-Assisted Near-Field THz MIMO System by Vaishali Sharma, Prakhar Keshari, Sanjeev Sharma, Kuntal Deka, Ondrej Krejcar, Vimal Bhatia

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Design of a Novel Triple Band Monopole Antenna for WLAN/WiMAX MIMO Applications in the Laptop Computer by Jayshri Kulkarni, Raju Seenivasan, V. Abhaikumar, Deepak Ram Prasath Subburaj

“…This confirms the applicability of the proposed antenna array for MIMO applications in the laptop computer.…”
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Dual-channel near-field holographic MIMO communications based on programmable digital coding metasurface and electromagnetic theory by Rui Wen Shao, Jun Wei Wu, Jiachen Li, Shengguo Meng, Yifan Xu, Zheng Xing Wang, Wankai Tang, Qiang Cheng, Shi Jin, Tie Jun Cui

“…Hence it is important to achieve a feasible hardware platform to support theoretical study of the holographic MIMO communications. Here, we propose a near-field holographic MIMO communication architecture based on programmable digital coding metasurface (PDCM) and electromagnetic theory. …”
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A Design of CP-MIMO System with Elements of a Diamond-Ring Slot for 5G Mobile-Phone by Alyaa Sami Abdullah, Seham A. Hashem, Mahmood F . Mosleh

Subjects: “…MIMO Antennas…”
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