Výsledky vyhledávání - analog precoder and combined

Hybrid Multi-User Equalization and Analog Precoder for Uplink mm Wave Cell Free Systems Autor Kassam, J., Castanheira, D., Silva, A., Dinis, R., Gameiro, A.

“…In this paper, we propose a distributed hybrid analog-digital multi-user equalizer combined with an analog precoder for a wideband millimeter-wave (mmWave…”
Získat plný text

Multi-User Linear Equalizer and Precoder Scheme for Hybrid Sub-Connected Wideband Systems Autor Castanheira, Daniel, Teodoro, Sara, Simões, Ricardo, Silva, Adão, Gameiro, Atilio

“… Therefore, the aim of this paper is to design a sub-connected hybrid analog–digital multi-user linear equalizer combined with an analog precoder to efficiently remove the multi-user interference…”
Získat plný text

Green Joint Radar-Communications: RF Selection with Low Resolution DACs and Hybrid Precoding Autor Kaushik, Aryan, Vlachos, Evangelos, Masouros, Christos, Tsinos, Christos, Thompson, John

“…) transmission with hybrid precoding and low resolution digital to analog converters (DACs). An energy efficient radio frequency (RF…”
Získat plný text

Recast Subspace Pursuit-based Channel Estimation for Hybrid Beamforming NarrowBand Millimeter-Wave Massive MIMO Systems Autor Oyerinde, Olutayo Oyeyemi

“… Though the combined high-speed analog-to-digital converters (ADCs) and hybrid precoder/combiner architecture of this system ameliorate the problem of high-power consumption, they make channel estimation to become cumbersome…”
Získat plný text

Channel Estimation for Hybrid Architecture-Based Wideband Millimeter Wave Systems Autor Venugopal, Kiran, Alkhateeb, Ahmed, Gonzalez Prelcic, Nuria, Heath, Robert W.

“…Hybrid analog and digital precoding allows millimeter wave (mmWave) systems to achieve both array and multiplexing gain…”
Získat plný text

Bi-Directional Training for Adaptive Beamforming and Power Control in Interference Networks Autor Changxin Shi, Berry, Randall A., Honig, Michael L.

“…We study distributed algorithms for adapting transmit beamformers and linear receiver filters in a Time-Division Duplex Multiple-Input Multiple-Output (MIMO)…”
Získat plný text

Hybrid precoding using long-term channel statistics for massive MIMO systems Autor Sungwoo Park, Jeonghun Park, Heath, Robert W., Yazdan, Ali

“… The proposed analog precoder is designed to maximize signal-to-leakage-plus-noise ratio (SLNR) when combined with a baseband precoder…”
Získat plný text

Near-Optimal Hybrid Processing for Massive MIMO Systems via Matrix Decomposition Autor Ni, Weiheng, Dong, Xiaodai, Lu, Wu-Sheng

“…) chains of the traditional processing structure. The hybrid processing is realized through low-dimensional digital baseband processing combined with analog RF processing enabled by phase shifters…”
Získat plný text

On the Number of RF Chains and Phase Shifters, and Scheduling Design With Hybrid Analog-Digital Beamforming Autor Bogale, Tadilo Endeshaw, Long Bao Le, Haghighat, Afshin, Vandendorpe, Luc

“… t ≤ N is the rank of the combined digital precoder matrices of all subcarriers. Second, we provide a simple…”
Získat plný text

Two-Step Analog-Digital Multiuser Equalizer for Hybrid Precoded mmWave Communications Autor Magueta, R., Castanheira, D., Silva, A., Dinis, R., Gameiro, A.

“…In this paper we propose a hybrid multi-user multi-stream equalizer combined with low complexity analog-digital precoders for uplink broadband millimeter wave massive multiple-input-multiple-output (MIMO) systems…”
Získat plný text

Codebook-Based Hybrid Beamforming Using Combined Phase Shifters of High and Low Resolutions Autor Xu, Ke, Zheng, Fu-Chun, Xu, Hongguang, Zhu, Xu, Leung, Ka-Cheong

“…The hybrid beamforming architecture where a combination of analog and digital precoders is employed has attracted much attention recently for its flexible trade-off between power consumption and performance…”
Získat plný text

A Novel Information-Directed Tree-Search Algorithm for RIS Phase Optimization in Massive MIMO Autor Ahmed, I. Zakir, Sadjadpour, Hamid, Yousefi, Shahram

“… The MaMIMO transceivers are assumed to be equipped with a hybrid precoder, combiner, and low-resolution analog-to-digital converters (ADCs…”
Získat plný text

Energy-Efficient Transceiver Design for Hybrid Sub-Array Architecture MIMO Systems Autor He, Shiwen, Qi, Chenhao, Wu, Yongpeng, Huang, Yongming

“…Millimeter-wave (mmWave) communication operated in frequency bands between 30 and 300 GHz has attracted extensive attention due to the potential ability of offering orders of magnitude greater bandwidths combined…”
Získat plný text

Weighted Sum Rate Maximization of the mmWave Cell-Free MIMO Downlink Relying on Hybrid Precoding Autor Feng, Chenghao, Shen, Wenqian, An, Jianping, Hanzo, Lajos

“… We formulate the WSR optimization problem subject to the transmit power constraint for each AP and the constant-modulus constraint for the phase shifters of the analog precoders…”
Získat plný text

An Information-Theoretic Branch-and-Prune Algorithm for Discrete Phase Optimization of RIS in Massive MIMO Autor Ahmed, I. Zakir, Sadjadpour, Hamid R., Yousefi, Shahram

“… The wireless nodes are assumed to be equipped with Massive Multiple-Input Multiple-Output antennas, hybrid precoder, combiner, and low-resolution analog-to-digital converters (ADCs…”
Získat plný text

User scheduling for massive MIMO OFDMA systems with hybrid analog-digital beamforming Autor Bogale, Tadilo Endeshaw, Long Bao Le, Haghighat, Afshin

“…This paper proposes a new user scheduling and sub-carrier allocation algorithm for multiuser downlink massive multiple input multiple output (MIMO) orthogonal…”
Získat plný text

Two-Step Multiuser Equalization for Hybrid mmWave Massive MIMO GFDM Systems Autor Kassam, Joumana, Miri, Manar, Magueta, Roberto, Castanheira, Daniel, Pedrosa, Pedro, Silva, Adão, Dinis, Rui, Gameiro, Atílio

“… In this paper, we propose a two-step hybrid multi-user (MU) equalizer combined with low complexity hybrid precoder for wideband mmWave mMIMO systems, as well as a semi-analytical approach to evaluate its performance…”
Získat plný text

RIS-Assisted Robust Hybrid Beamforming Against Simultaneous Jamming and Eavesdropping Attacks Autor Sun, Yifu, An, Kang, Zhu, Yonggang, Zheng, Gan, Wong, Kai-Kit, Chatzinotas, Symeon, Yin, Haifan, Liu, Pengtao

“…), we aim to address the worst-case sum rate maximization problem by jointly designing the receive decoder at the users, both the digital precoder and the artificial…”
Získat plný text

Multi-layer beamforming in uplink/downlink massive MIMO Systems with multi-antenna users Autor Rezaei, Fatemeh, Tadaion, Aliakbar

“… In the uplink transmission, we propose a hybrid analog/digital beamformer at the BS and digital precoders at users…”
Získat plný text

Hybrid precoding based on tensor decomposition for mmWave 3D-MIMO systems Autor Liu, Lu, Tian, Yafei

“… The null space can be well approximated by the Kronecker product of azimuth and elevation directional array vectors, and thus the designed analog precoder can eliminate inter-user interference…”
Získat plný text