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Advanced Search Results For "MIMO systems"

1 - 10 of 27,909 results for
 "MIMO systems"
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A Full-Duplex MIMO System Based on CP-Free OFDM in Sensor Network.

Publication Type:Academic Journal

Source(s):Journal of Sensors. 7/11/2022, p1-5. 5p.

Abstract:Recently, results have shown that full-duplex (FD) system based on orthogonal frequency division multiplexing (OFDM) is potential for wireless sensor networks. However, extending FD to further improve spectral efficiency by removing cyclic prefix (CP) ...

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ResNet-Enabled cGAN Model for Channel Estimation in Massive MIMO System.

Publication Type:Academic Journal

Source(s):Wireless Communications & Mobile Computing. 8/29/2022, p1-9. 9p.

Abstract:Massive multiple-input multiple-output (MIMO), or large-scale MIMO, is one of the key technologies for future wireless networks to exhibit a large accessible spectrum and throughput. The performance of a massive MIMO system is strongly reliant on the n...

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Efficient Hybrid Iterative Method for Signal Detection in Massive MIMO Uplink System over AWGN Channel.

Publication Type:Academic Journal

Source(s):Journal of Engineering (2314-4912). 8/21/2022, p1-19. 19p.

Abstract:Massive multiple input multiple output (massive MIMO) is a key technology in fifth-generation (5G) and beyond fifth-generation (B5G) networks. It improves performance metrics such as gain, energy efficiency, spectral efficiency, and bit error rate (BER...

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Feedback Overhead in the FDD Downlink Massive MIMO System.

Publication Type:Academic Journal

Source(s):Wireless Communications & Mobile Computing. 7/27/2022, p1-18. 18p.

Abstract:One of the fundamental problems in massive multiple input multiple output (MMIMO) systems based on the frequency division duplexing (FDD) mode is the acquisition of the channel state information at the base station (BS). Indeed, in these systems, the r...

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Secure Downlink Transmission in Cell-Free Massive MIMO System Enhanced by Intelligent Reflecting Surfaces.

Publication Type:Academic Journal

Source(s):Security & Communication Networks. 7/13/2022, p1-16. 16p.

Abstract:This paper presents the application of intelligent reflecting surfaces (IRSs) in a cell-free massive MIMO network to enhance secure transmission in the system. Multiantenna access points (APs) need to transmit information to users safely and reliably v...

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Four Element MIMO Antenna Systems with Decoupling Lines for High-Speed 5G Wireless Data Communication.

Publication Type:Academic Journal

Source(s):International Journal of Antennas & Propagation. 6/25/2022, p1-13. 13p.

Abstract:A low-profile planar multiple-input multiple-output (MIMO) antenna consisting of four elements with isolation improvement is proposed for 5G mm Wave (24–40) GHz applications. Each radiating element of the MIMO antenna comprises of a microstrip-fed tilt...

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An Efficient Machine Learning Based Precoding Algorithm for Millimeter-Wave Massive MIMO.

Publication Type:Academic Journal

Source(s):Computers, Materials & Continua. 2022, Vol. 71 Issue 3, p5399-5411. 13p.

Abstract:Millimeter wave communication works in the 30–300 GHz frequency range, and can obtain a very high bandwidth, which greatly improves the transmission rate of the communication system and becomes one of the key technologies of fifth-generation (5G). The ...

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On the Energy Efficiency of Multicell Massive MIMO with Antenna Selection and Power Allocation.

Publication Type:Academic Journal

Source(s):Wireless Communications & Mobile Computing. 4/22/2022, p1-11. 11p.

Abstract:The energy consumption of massive multiple-input multiple-output (MIMO) systems increases with the number of antennas. Optimizing the energy efficiency (EE) of massive MIMO systems is one of the ways to achieve green communication. This paper proposes ...

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Random Graph-Based M-QAM Classification for MIMO Systems.

Publication Type:Academic Journal

Source(s):Wireless Communications & Mobile Computing. 4/15/2022, p1-10. 10p.

Abstract:Automatic modulation classification (AMC) has been identified to perform a key role to realize technologies such as cognitive radio, dynamic spectrum management, and interference identification that are arguably pivotal to practical SG communication ne...

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Performance Evaluation of Spectral Efficiency for Uplink and Downlink Multi-Cell Massive MIMO Systems.

Publication Type:Academic Journal

Source(s):Journal of Sensors. 6/30/2022, p1-12. 12p.

Abstract:Massive multiple-input and multiple-output (MIMO) systems have become the most persuasive technology for 5G as it increased the energy efficiency gigantically as compared to other wireless communication systems. Being the most vibrant research technolo...

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