Results 1 to 10 of about 824 (179)
Sensors, 2016 Drastic improvements in transmission rate and system capacity are required towards 5th generation mobile communications (5G). One promising approach, utilizing the millimeter wave band for its rich spectrum resources, suffers area coverage shortfalls due
Kazuki Maruta +2 more
exaly +3 more sources
Uplink NOMA-MIMO Systems with Rayleigh Power Distribution [PDF]
Sensors, 2022 The article is devoted to multiple-input multiple-output antenna systems, also called MIMO systems, which are widely used in wireless communication systems. In this article we consider a case when the MIMO system works in overloaded mode.
Mikhail Bakulin +4 more
doaj +2 more sources
Polarization spatial diversity and multiplexing MIMO surface enabled by graphene for terahertz communications. [PDF]
NanophotonicsAbstract The terahertz (THz) frequency band has abundant spectrum resources, which is suitable for constructing communication systems with ultra‐high data rates and extremely low latency. Multiple input multiple output (MIMO) devices are crucial for realizing THz communication, and the synchronous transmission and noncorrelation of different channels ...
Huang J, Wu X, Xiong C, Zhang J, Hu B.
europepmc +2 more sources
An efficient binary salp swarm algorithm for user selection in multiuser MIMO antenna systems [PDF]
Scientific ReportsThe past ten years have seen notable research activity and significant advancements in multiuser multiple-input multiple-output (MU-MIMO) antennas. An MU-MIMO antenna system must accommodate many subscribers without additional bandwidth or energy.
A. Sasikumar +7 more
doaj +2 more sources
ICT Express, 2023 By leveraging the characteristics of both quantum encoding and classical data channel, we present a unique and novel multiuser optical communication system that utilizes fascinating properties of the structured light for information transmission ...
Sudhanshu Arya, Yeon Ho Chung
doaj +1 more source
Optimal Multiuser MIMO Linear Precoding with LMMSE Receiver
EURASIP Journal on Wireless Communications and Networking, 2009 The adoption of multiple antennas both at the transmitter and the receiver will explore additional spatial resources to provide substantial gain in system throughput with the spatial division multiple access (SDMA) technique.
Shu Fang, Gang Wu, Shao-Qian Li
doaj +2 more sources
Resource Allocation Method Based on Cognitive Multiple-Input Multiple-Output Networks [PDF]
Jisuanji gongcheng, 2018 Aiming at the problem of high energy consumption in wireless communication,based on multiuser cognitive Multiple-Input Multiple-Output(MIMO) networks system and using Time Division Multiplexing-Code Division Multiple Access(TDM-CDMA) technology,the "
NI Guoying,QIN Xizhong,JIA Zhenhong,NIU Hongmei,WANG Zhehui
doaj +1 more source
User Selection for Millimeter Wave Non-Uniform Full Dimensional MIMO
IEEE Access, 2020 The millimeter wave (mmWave) based full-dimensional (FD) MIMO communication is one of the promising technology to fulfill the demand of high data rate for the sixth generation (6G) services including 6D hologram, haptic and multi-sensory communications ...
Irem Cumali +3 more
doaj +1 more source
Multiuser Precoding Scheme Based on 3D Codebooks for Large-scale MIMO Systems [PDF]
Jisuanji gongcheng, 2017 For the co-channel interference in large-scale Multiple Input Multiple Output(MIMO) systems,this paper proposes a multiuser precoding scheme based on 3D codebooks.
ZENG Youcai,JING Xiaorong
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Design Parameters for Massive Communication Systems Under Energy-Efficient Polynomial Precoder
IEEE Access, 2022 Massive multiple-input multiple output (MIMO) systems have been introduced as a resolution for next generation cellular systems. The complexity of computing the precoding in massive MIMO is increased.
Mohamed G. El-Mashed +3 more
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