Suchergebnisse - "Analog precoder"

Analog Precoder and Equalizer Designs and their Geometry for Multichannel Communication von Zhifei Fan, Scharf, L.L., Gubner, J.A.

“… This is a paper on modulation theory that addresses joint analog precoder and equalizer design for multichannel data transmission over the frequency-selective additive Gaussian noise (AGN) channel …”
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Analog precoder and equalizer design for multichannel communication von Fan, Z., Scharf, L., Gubner, J.A.

“… This work addresses joint analog precoder and equalizer design for multichannel data transmission over the frequency-selective additive Gaussian noise (AGN) channel …”
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Hybrid Precoding With Rate and Coverage Constraints for Wideband Massive MIMO Systems von Kong, Lingxiao, Han, Shengqian, Yang, Chenyang

“… ) systems, where analog precoder is used to form narrow beams toward users for data transmission with reduced number of radio frequency chains …”
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Energy-Efficient Power Allocation in Multi-User mmWave-NOMA Systems With Finite Resolution Analog Precoding von Qi, Xiaolei, Xie, Gang, Liu, Yuanan

“… For these two structures, the finite resolution analog precoder is realized through a low-power switches and inverters (SI) network …”
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Low-complexity Hybrid Beamforming for MMSE-based Symbol-level Precoding in Multi-user MISO System von Lee, Jaewon, Kang, Chung G.

“… Data-aided symbol-level precoding can exploit constructure interference for improving the energy and system efficiency in the multiantenna downlink channel, …”
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Hybrid Delay-Phase Precoding in Wideband UM-MIMO Systems Under True Time Delay and Phase Shifter Hardware Limitations von Najjar, Akram, El-Absi, Mohammed, Kaiser, Thomas

“… The exploitation of the substantial bandwidths available in the terahertz (THz) band has recently attracted considerable interest. However, beam squint effect …”
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STAR-RIS-Assisted Hybrid MIMO mmWave Communications von Yang, Xiawei, Liu, Heng, Gong, Shiqi, Wang, Gongpu, Xing, Chengwen

“… T&R coefficients at the STAR-RIS and the hybrid analog-digital precoder/combiners, subject to the discrete phase shift constraints …”
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The Spectral Versus Energy Efficiency Trade-Off in Dynamic User Clustering Aided mmWave NOMA Networks von Rai, Sudhakar, Sharma, Ekant, Jagannatham, Aditya K., Hanzo, Lajos

“… of users in each cluster. Subsequently, a joint analog precoder/combiner and user clustering technique is developed, followed by a multi-objective optimization (MOO …”
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Hybrid Analog and Digital Precoding Design for Minimum BER in Massive MIMO System von Li, Junjie, Zhao, Lei, Jiang, Yuan

“… First, we formulate an average BER minimization optimization problem, subject to the maximum transmit power constraint and the constant modulus constraints for the phase shifters …”
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A Framework for Multi-Functional Optimization in RIS-Aided Hybrid Analog-Digital MIMO Systems von Ju, Xin, Xing, Chengwen, Yang, Hanyu, Gong, Shiqi, Zhao, Nan, Niyato, Dusit

“… Both the reconfigurable intelligent surface (RIS) and the hybrid analog-digital antenna array have been envisioned as two cost-effective and promising …”
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Gradient-based solution for hybrid precoding in MIMO systems von Zanjani, Negin Bakhshi, Khademi, Seyran, Leus, Geert

“… ) systems is considered in this paper which is referred to as hybrid precoding. The system capacity, as a design criterion, is maximized subject to unit modulus constraints on the elements of the analog precoder (phase shifters …”
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A Hybrid Precoding Design Based on Alternate Minimization von Yang, Shuo, Dou, Zheng

“… For the optimization of the phase matrix in the analog precoder, it is transformed into a subproblem of the number of radio frequency (RF) chains …”
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Joint Hybrid/Passive Beamforming Design in IRS-aided Multi-User MISO Systems for PS-SWIPT von Ntougias, Konstantinos, Krikidis, Ioannis

“… weights and IRS phase shifts. We also derive a low-complexity, decoupled iterative design where the analog precoder is updated via the stochastic gradient descent algorithm and the PB is computed via …”
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Hardening Cybersecurity for 5G and Beyond Wireless Networks at Physical Layer von Jiao, Long

“… One of the main challenges in 5G networks is to ensure secure and reliable communication service. The efficient and lightweight security mechanism is desired …”
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MmWave MIMO Hybrid Precoding Design Using Phase Shifters and Switches von Liu, Qiang, Qi, Chenhao, Yu, Xianghao, Li, Geoffrey Ye

“… Specifically, we alternately optimize the analog precoder and the digital precoder, where the former is converted into several subproblems and each subproblem further …”
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Hybrid precoder for massive MIMO systems with coverage constraint von Lingxiao Kong, Shengqian Han, Chenyang Yang

“… ) systems, where analog precoder is used to form narrow beams towards users for data transmission with reduced number of radio frequency chains …”
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Modified Low Complexity Precoding Algorithm for Millimeter Wave MIMO Systems von Rohatgi, Archit, Rawat, Meenakshi

“… Therefore, as a cost-effective alternative, hybrid precoding which comprises of digital and analog precoder has received considerable attention …”
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Signal design, diversity, and capacity in multi-access communication systems von Fan, Zhifei

“… In this dissertation, we exploit degrees of freedom in time and frequency to trade-off capacity and diversity in time-frequency-spreading channels. We then …”
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On Energy Efficiency and Fairness Maximization in RIS-Assisted MU-MISO mmWave Communications von Magbool, Ahmed, Kumar, Vaibhav, Flanagan, Mark F.

“… In this paper, we propose a lexicographic-based approach to find the optimal power allocation, RIS passive beamforming matrix, and analog precoders that maximize both energy efficiency and user fairness …”
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Weighted Sum Rate Maximization of the mmWave Cell-Free MIMO Downlink Relying on Hybrid Precoding von 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 …”
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