mimo multiple-input and multiple-output 2019


mimo multiple-input and multiple-output ieee papers 2019

Beam Alignment for MIMO -NOMA Millimeter Wave Communication Systems
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Millimeter wave (mmWave) communication is a promising technology in future wireless networks because of its wide bandwidths that can achieve high data rates. However, high beam directionality at the transceiver is needed due to the large path loss at mmWave

Massive mimo for ray-based channels
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Favorable propagation (FP) and channel hardening are desired properties in massive multiple-input and multipleoutput ( MIMO ) systems, where nearly optimal performance is achieved with linear processing techniques, such as maximalratio combining. To date, these

Error exponent analysis for MIMO multiple-scattering channels
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Error exponent analysis for MIMO multiple-scattering channels

Distributed Dual-Function Radar-Communication MIMO System with Optimized Resource Allocation
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In this paper, we propose a novel distributed dualfunction radar-communication (DFRC) MIMO system capable of simultaneously performing radar and communication tasks. The radar objective is to achieve the desired target localization performance whereas the As one of the core technologies for future mobile communications, the massive MIMO technology can effectively improve the network capacity, enhance the network robustness, and reduce the communication latency. However, the complexity of baseband processing

Wireless Data Transmission in Underwater Hydroacoustic Environment Based on MIMO -OFDM System and Application Adaptive Algorithm at the Receiver Side
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To increase the transmission speed in wireless data transmission systems, it is necessary to change either the bandwidth or the spectral efficiency, or both simultaneously. Systems based on Multi-Input Multi-Output ( MIMO ) methods can significantly increase spectral Cognitive radio (CR) and multiple-input multiple-output ( MIMO ) are two independent physical layer technologies that have made significant impact on wireless networks. In particular, CR operates on the channel level to exploit efficiency across spectrum dimension

Colocated MIMO radar waveform design for angular statistical resolution limit in the context of hypothesis testing
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Dear editor, In this study, we designed collocated multipleinput multiple-out ( MIMO ) radar waveforms to maximize the resolution performance of angular statistical resolution limit (SRL). The SRL is an emerging definition of the resolution limit in the context of hypothesis In wireless local area networks (WLANs), the traditional carrier sense multiple access with collision avoidance (CSMA/CA) medium access control (MAC) protocol cannot use the full benefits from multiuser multiple-input multiple-output (MU- MIMO ) technique due to random

Pilot Sequence Assignment for Spatially Correlated Massive MIMO Circumstances
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For massive multiple-input multiple-output ( MIMO ) circumstances with time division duplex (TDD) protocol, pilot contamination becomes one of main system performance bottlenecks. This paper proposes an uplink pilot sequence assignment to alleviate this problem for

To Cancel or Not to Cancel: Exploiting Interference Signal Strength in the Eigenspace for Efficient MIMO DoF Utilization
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Degree-of-Freedom (DoF) based models have been widely used to study MIMO networks. To cancel interference, the number of DoFs used in the state-of-the-art DoF models is solely based on the number of interfering data streams. However, by decomposing an interference

Compact Dual-band Hybrid-Fractal MIMO System for UMTS and LTE Mobile Applications.
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Abstract This article presents a bandwidth enriched, dual-band, compact, multiple-input- multiple-output ( MIMO ) antenna with high isolation for UMTS and LTE applications. The proposed coplanar waveguide (CPW)-fed, hybrid fractal MIMO antenna was created by

Bandwidth enhancement and miniaturization of circular-shaped microstrip antenna based on beleved half-cut structure for MIMO 2 2 application
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In this paper, circular-shaped microstrip antenna was simulated, fabricated, and measured accordingly. As the novelty, to enhance bandwidth and reduce antenna size, beleved half- cut microstrip structure is proposed. Further, this proposed antenna structure will be applied Physical layer security is a crucial issue in wireless networks to prevent legitimate communication from eavesdropping. This paper investigates the physical layer security of a wireless multiple-input multiple-output ( MIMO ) orthogonal frequency division multiplexing A combined user and antenna scheduling algorithm implementing spatial multiplexing with limited feedback is proposed for multiple-input multiple-output orthogonal frequency-division multiplexing downlink channel. Base station (BS) should be kept updated about the channel

AN OPTIMIZED HYBRID BEAMFORMING FOR MILLIMETER WAVE MU-MASSIVE MIMO SYSTEM
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Millimeter wave (mmWave) and massive multiple-input multiple-output communications (massive MIMO ) have been adopted as the most important keys for the next generation (5G) wireless networks due to high spectrum availability and massive use of space diversity for The energy-efficient design for TDMA (time-division multiple access) MIMO (multiple-input multiple-output) cognitive radio (CR) networks can be treated as the joint optimization over both the time resource and the transmit precoding matrices to minimize the overall energy

Effects of Near-Field Loading on Compact MIMO Antennas.
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Effects of Near-Field Loading to Compact MIMO Antennas.(Under the direction of Dr. Jacob J. Adams). MIMO (Multiple-Input Multiple-Output) technology promises a linear increase in channel capacity without the cost of additional

Feasibility Evaluation of MIMO Based FSO Links
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Abstract Free space optical communication (FSO) has evolved as a substitute to radio frequency communication over the few years. It gives a promising solution to the high-speed point-to-point communication. However, atmospheric absorption, scattering and turbulence Massive multiple-input multiple-output ( MIMO ), which scales up the number of antennas to the order of tens or even hundreds, promises dramatically improved spectral efficiency and link reliability beyond what can be possibly achieved by conventional MIMO . Recently, in an



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