Search Results - statistical RF precoder

Impact of CSI Knowledge on the Codebook-Based Hybrid Beamforming in Massive MIMO by An Liu, Lau, Vincent K. N.

“…Hybrid beamforming, which consists of an RF precoder and a baseband precoder, has been proposed to reduce the number of RF chains at the massive multiple input multiple output (MIMO) base station (BS…”
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Machine-learning-based high-resolution DOA measurement and robust directional modulation for hybrid analog-digital massive MIMO transceiver by Zhuang, Zhihong, Xu, Ling, Li, Jiayu, Hu, Jinsong, Sun, Linlin, Shu, Feng, Wang, Jiangzhou

“…At hybrid analog-digital (HAD) transceiver, an improved HAD estimation of signal parameters via rotational invariance techniques (ESPRIT), called I-HAD-ESPRIT,…”
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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

“…) chain is connected to a dynamic subset of antennas. We consider the design of analog and digital precoders utilizing statistical and/or mixed channel state information (CSI…”
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Intelligent Reflecting Surface-Assisted mmWave Communication Exploiting Statistical CSI by Yang, Fan, Wang, Jun-Bo, Zhang, Hua, Chang, Chuanwen, Cheng, Julian

“… IRS consists of a large number of passive elements which digitally manipulate electromagnetic waves, and thus can act as a passive precoder in the communication…”
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Achievable Rates of Massive MIMO NOMA Downlink with Limited RF Chains by Gaddam, Sharath Chandra Reddy, Kudathanthirige, Dhanushka, Amarasuriya, Gayan

“…) chains is investigated. A low-dimensional digital precoder is cascaded with a high-dimensional analog precoder and thus reducing the number of RF chains required at the NOMA-enabled massive MIMO base-station…”
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Statistical Precoding for Dual-Polarized narrowband and wideband mmWave Systems by Chiu, Pei-Ning, Lin, Yuan-Pei

“… The closed-form lends itself to the design of statistical precoders. As the statistical precoder is designed based on statistics, the performance is less sensitive to fading caused by user movement. Simulations over realistic channels show that when mobile speed exceeds 1.5 km/hr, statistical precoding outperforms a precoder that is designed using periodic full CSI feedback for a commonly used feedback period…”
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Performance of Multibeam Very High Throughput Satellite Systems Based on FSO Feeder Links With HPA Nonlinearity by Zedini, Emna, Kammoun, Abla, Alouini, Mohamed-Slim

“…) links are presented as an ideal alternative to the conventional radio frequency (RF) feeder links of the geostationary satellite for next generation very high throughput satellite (VHTS) systems…”
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On the MMSE‐based multiuser millimeter wave MIMO hybrid precoding design by Elmagzoub, Hisham M

“… At first, according to the underlying channel knowledge, the phases of the RF precoder and combiner are manipulated by using the MMSE criterion…”
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Two-stage combining and beamforming for FDD massive MIMO relay system with user-pair scheduling by Ge, Dan, Liu, Chen, Song, Yunchao, Gao, Tianbao, Liang, Huibin

“… Unlike existing schemes, the proposed TSCBUS scheme leverages statistical channel state information to jointly design the pre-combining and pre-beamforming matrices (PPMs…”
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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

“…) chain is connected to a dynamic subset of antennas. We consider the design of analog and digital precoders utilizing statistical and/or mixed channel state information (CSI…”
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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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Mixed-Timescale Per-Group Hybrid Precoding for Multiuser Massive MIMO Systems by Teng, Yinglei, Wei, Min, Liu, An, Lau, Vincent, Zhang, Yong

“… structure, where the RF precoder is implemented using an adaptive connection network (ACN) and M analog phase shifters…”
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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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Analog antenna combining in transmit correlated channels: Transceiver design and performance evaluation by Elvira, Víctor, Vía, Javier

“…). Assuming perfect channel knowledge at the receiver and statistical channel state information at the transmitter, we consider the problem of selecting the transmit and receive RF weights (beamformers…”
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Hybrid Wideband Millimeter Wave Transceiver for Single-User Multi-Relay MIMO Systems by Mustafa, Hafiz Muhammad Tahir, Baik, Jung-In, You, Young-Hwan, Abbasi, Zunira, Song, Hyoung-Kyu

“… In hybrid transceivers, the analog processing component in the radio frequency (RF) section of the system essentially needs to follow an element-wise constant amplitude…”
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Hybrid Precoding and Combining for Downlink Multi-User Millimeter Wave Systems Without Instantaneous Feedback by Lee, Po-Hsuan

“… Namely, the transmitter needs only infrequent feedback from the receiver. There are three designs proposed for the RF precoders…”
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Performance of Multibeam Very High Throughput Satellite Systems Based on FSO Feeder Links with HPA Nonlinearity by Zedini, Emna, Kammoun, Abla, Mohamed-Slim Alouini

“…) links are presented as an ideal alternative to the conventional radio frequency (RF) feeder links of the geostationary satellite for next generation very high throughput satellite (VHTS) systems…”
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Mixed-timescale Per-group Hybrid Precoding for Multiuser Massive MIMO Systems by Teng, Yinglei, Wei, Min, Liu, An, Lau, Vincent, Zhang, Yong

“…) scheme under an adaptive partially-connected RF precoding structure (PRPS), where the RF precoder is implemented using an adaptive connection network (ACN…”
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