Results 11 to 20 of about 184,691 (254)
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
Rate-Splitting Multiple Access for Quantized Multiuser MIMO Communications [PDF]
IEEE Transactions on Wireless Communications, 2022 This paper investigates the sum spectral efficiency maximization problem in downlink multiuser multiple-input multiple-output systems with low-resolution quantizers at an access point (AP) and users.
Seok-Hwan Park +4 more
semanticscholar +1 more source
Multiuser Detection for Nonlinear MIMO Uplink [PDF]
IEEE Transactions on Communications, 2020 For the multiple-input multiple-output (MIMO) uplink employing high-order quadrature amplitude modulation (QAM) signaling and with nonlinear high power amplifiers (HPAs) at mobile users’ transmitters, the existing multiuser detection methods can no longer be applied. We propose a novel nonlinear multiuser detection scheme for the nonlinear MIMO uplink.
Sheng Chen +4 more
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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
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Energy and Spectral Efficiency of Very Large Multiuser MIMO Systems [PDF]
IEEE Transactions on Communications, 2011 A multiplicity of autonomous terminals simultaneously transmits data streams to a compact array of antennas. The array uses imperfect channel-state information derived from transmitted pilots to extract the individual data streams.
H. Ngo, E. Larsson, T. Marzetta
semanticscholar +1 more source
Multiuser MIMO Wideband Joint Communications and Sensing System With Subcarrier Allocation
IEEE Transactions on Signal Processing, 2023 In wideband joint communications and sensing (JCAS) systems, the waveforms are often designed and optimized over the entire bandwidth. This significantly limits the degrees of freedom in beamforming and causes severe communications performance loss ...
N. Nguyen +3 more
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DeepSIC: Deep Soft Interference Cancellation for Multiuser MIMO Detection [PDF]
IEEE Transactions on Wireless Communications, 2020 Digital receivers are required to recover the transmitted symbols from their observed channel output. In multiuser multiple-input multiple-output (MIMO) setups, where multiple symbols are simultaneously transmitted, accurate symbol detection is ...
Nir Shlezinger, Rong Fu, Yonina C. Eldar
semanticscholar +1 more source
Iterative Algorithm Induced Deep-Unfolding Neural Networks: Precoding Design for Multiuser MIMO Systems [PDF]
IEEE Transactions on Wireless Communications, 2020 Optimization theory assisted algorithms have received great attention for precoding design in multiuser multiple-input multiple-output (MU-MIMO) systems.
Qiyu Hu +5 more
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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
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Energy Efficiency and Spectral Efficiency Tradeoff in RIS-Aided Multiuser MIMO Uplink Transmission [PDF]
IEEE Transactions on Signal Processing, 2020 The emergence of reconfigurable intelligent surfaces (RISs) enables us to establish programmable radio wave propagation that caters for wireless communications, via employing low-cost passive reflecting units.
Li You +5 more
semanticscholar +1 more source