Search Results - statistics rf precoder

Two-Stage Constant-Envelope Precoding for Low-Cost Massive MIMO Systems by An Liu, Lau, Vincent K. N.

“… The RF precoder is adaptive to the slow timescale channel statistics to achieve the array gain…”
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Impact of CSI Knowledge on the Codebook-Based Hybrid Beamforming in Massive MIMO by An Liu, Lau, Vincent K. N.

“… (channel statistics plus the low-dimensional effective channel matrix). With full instantaneous CSIT, both the RF and baseband precoders are adaptive to the full instantaneous CSI at the fast timescale…”
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Power Minimization for Massive MIMO Systems with Two-Timescale Hybrid Precoding by Liu, An, Lau, Vincent, Teng, Yinglei

“… In THP, the MIMO precoder consists of a high- dimensional RF precoder adaptive to the channel statistics and a low-dimensional baseband precoder adaptive to the instantaneous effective channel state information (CSI…”
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Stochastic Successive Convex Optimization for Two-Timescale Hybrid Precoding in Massive MIMO by Liu, An, Lau, Vincent K. N., Zhao, Min-Jian

“… To overcome this issue, two-timescale hybrid precoding (THP), which adapts the RF precoder to the channel statistics, has been proposed…”
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Stochastic Successive Convex Optimization for Two-timescale Hybrid Precoding in Massive MIMO by Liu, An, Lau, Vincent, Min-Jian, Zhao

“… To overcome this issue, two-timescale hybrid precoding (THP), which adapts the RF precoder to the channel statistics, has been proposed…”
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Randomized Two-Timescale Hybrid Precoding for Downlink Multicell Massive MIMO Systems by Xihan Chen, An Liu, Yunlong Cai, Lau, Vincent K. N., Min-Jian Zhao

“… of massive MIMO, such as severe inter-cell interference, huge channel state information (CSI) overhead/delay, high cost and power consumption of RF chains, and user fairness…”
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Joint MSE-based hybrid precoder and equalizer design for full-duplex massive MIMO systems by Ruikai Mai, Nguyen, Duy H. N., Tho Le-Ngoc

“… In particular, baseband processing is adjusted according to instantaneous channel variation while RF processing is only updated based on such long-term channel statistics as transmit and receive correlation…”
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Sparse Linear Precoders For Mitigating Nonlinearities In Massive MIMO by Mezghani, Amine, Plabst, Daniel, Swindlehurst, Lee A., Fijalkow, Inbar, Nossek, Josef A.

“…Dealing with nonlinear effects of the radio-frequency (RF) chain is a key issue in the realization of very large-scale multi-antenna (MIMO) systems…”
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Channel-Statistics-Based Hybrid Precoding for Millimeter-Wave MIMO Systems With Dynamic Subarrays by Jin, Juening, Xiao, Chengshan, Chen, Wen, Wu, Yongpeng

“…) systems with finite-alphabet inputs. The mmWave MIMO system employs partially-connected hybrid precoding architecture with dynamic subarrays, where each radio frequency (RF…”
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Hybrid precoding using long-term channel statistics for massive MIMO systems by Sungwoo Park, Jeonghun Park, Heath, Robert W., Yazdan, Ali

“…Hybrid analog/digital precoding in the downlink of multiuser massive MIMO systems can reduce the number of RF chains hence reducing total cost and improving power efficiency…”
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Statistical Precoding for Dual-Polarized narrowband and wideband mmWave Systems by Chiu, Pei-Ning, Lin, Yuan-Pei

“…) from the receiver and the feedback is not instantaneous. We design the precoders using statistics of the user channels, without instantaneous channel information…”
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Hybrid Precoding for Partial-Full Mixed Connection mmWave MIMO by Gautam, Prabhat Raj, Zhang, Li

“…) architecture in millimeter wave (mmWave) multiple input multiple output (MIMO). The RF chains and the antennas are divided into various subgroups with full connection existing between the RF chains and the antennas of a particular subgroup…”
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Hybrid Precoding Design for MIMO System With One-Bit ADC Receivers by Hou, Qitong, Wang, Rui, Liu, Erwu, Yan, Dongliang

“… Another promising technique is to apply a hybrid precoding architecture to reduce the number of RF chains…”
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Flexible Hybrid Beamforming Approaches in Massive Mimo Systems by Zhang, Mingzhe

“… Conventional fully digital linear beamforming schemes can achieve near-optimal performance in massive MIMO systems, but they require that each antenna element be equipped with an individual radio frequency (RF) chain…”
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Training-Based Hybrid Precoding Scheme for Multiuser Massive MIMO-OFDM by Sun, Yiwei, Wang, Hua, Yuan, Minghao, Zhu, Tianye, Kawoya, Agnes

“… Firstly, we design a training based fully-digital precoder/combiner using the statistics of the transmitted and received signal under minimum mean square error (MMSE…”
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Physical Layer Anonymous Precoding under CSI and Hardware-Imperfections: A KLD-based Approach by Cui, Yifan, Wei, Zhongxiang, Sun, Sumei, Zhu, Xu, Masouros, Christos, Petropulu, Athina P.

“… (RF) front end can also be exploited as unique signature of the sender. Since the signal is transmitted through the RF front end and then is…”
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Hybrid RF-Baseband Precoding/Combining for Massive MIMO Wireless Communications by Mai, Ruikai

“…, a hybrid RF-baseband precoding/combining architecture has been proposed. By limiting the number of RF chains, a stage of RF analog precoding/combining is introduced in combination with baseband digital precoding/combining…”
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Channel-Statistics-Based Hybrid Precoding for Millimeter-Wave MIMO Systems With Dynamic Subarrays by Jin, Juening, Xiao, Chengshan, Chen, Wen, Wu, Yongpeng

“…) systems with finite-alphabet inputs. The mmWave MIMO system employs partially-connected hybrid precoding architecture with dynamic subarrays, where each radio frequency (RF…”
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Hybrid MIMO-OFDM for Downlink Multi-User Communications Over Millimeter Channels with no Instantaneous Feedback by Lee, Po-Hsuan, Lin, Yuan-Pei

“… In a hybrid MIMO-OFDM, precoding consists of two parts: a RF (Radio Frequency) precoder that is subcarrier independent and subcarrier precoders that are subcarrier dependent…”
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Sum capacity of massive MIMO systems with quantized hybrid beamforming by An Liu, Lau, Vincent

“…Recently, hybrid beamforming, which consists of an analog RF precoder and a digital baseband precoder, has been proposed for massive MIMO systems to reduce the number of RF chains and power…”
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