Search Results - block-diagonal precoder

Block Diagonal Hybrid Precoding and Power Allocation for QoS-Aware BDMA Downlink Transmissions by Niu, Guanchong, Cao, Qi, Pun, Manon

“…Beam Division Multiple Access (BDMA) with hybrid precoding has recently been proposed for multi-user multiple-input multiple-output (MU-MIMO) systems by…”
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Uplink MIMO Precoding Under Random Phase Imperfections by Xie, Hongxiang, Wang, Hao, Kapetanovic, Dzevdan

“… In this paper, we investigate the optimal uplink digital precoder design under such random phase imperfections…”
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Optimal BD-ZF precoder for multi-user MIMO downlink transmission by Yao, Rugui, Nan, Huani, Xu, Juan, Li, Geng

“…For multi-user MIMO downlink transmission, a block-diagonal zero-forcing (BD-ZF) precoder is usually used to suppress multi-user interference…”
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Block Diagonal GMD for Zero-Padded MIMO Frequency Selective Channels by Ching-Chih Weng, Vaidyanathan, P P

“…) efficiency increases. In this paper, we propose using block diagonal geometric mean decomposition (BD-GMD…”
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Optimized BD‐ZF Precoder for Multiuser MIMO‐VFDM Cognitive Transmission by Yao, Rugui, Xu, Juan, Li, Geng, Wang, Ling

“…In this paper, we study an optimized block‐diagonal zero‐forcing (BD‐ZF) precoder in a two‐tiered cognitive network consisting of a macro cell…”
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Hybrid beamforming for downlink multiuser millimetre wave MIMO-OFDM systems by Zhang, Didi, Wang, Yafeng, Li, Xuehua, Xiang, Wei

“…) a common analogue precoder and combiner for the transmitter and receiver to maximise spectral efficiency is the main challenge for multi-carrier MIMO systems, they propose two methods to solve this problem…”
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Hybrid Beamforming With Widely-Spaced-Array for Multi-User Cross-Near-and-Far-Field Communications by Shen, Heyin, Chen, Yuhang, Han, Chong, Yuan, Jinhong

“…With multi-GHz bandwidth, Terahertz (THz) beamforming has drawn increasing attention in the sixth generation (6G) and beyond communications. Existing…”
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Cooperative Precoding for Cognitive Transmission in Two-Tier Networks by Yao, Rugui, Liu, Yinsheng, Lu, Lu, Li, Geoffrey Ye, Maaref, Amine

“… And then, three ITPs, a block-diagonal zero-forcing (BD-ZF) ITP, a capacity-achieving (CA) ITP, and a generalized MMSE channel inversion (GMI) ITP, are developed…”
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Study of MIMO Channel Matrices Correlation to Optimize Resource Allocation Algorithms in Multi-Users 5G by Manini, Malo, Gueguen, Cedric, Legouable, Rodolphe, Lagrange, Xavier

“…Resource allocation is a major research field in wireless networks. The main challenge is to find the most suitable user for each time and frequency resource…”
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Block diagonal GMD for zero-padded mimo frequency selective channels with zero-forcing DFE by Weng, Ching-Chih, Vaidyanathan, P. P.

“…) technique to design an alternative transceiver. The proposed ZF-BD-GMD system uses a block diagonal orthogonal precoder matrix structure to reduce the required number of encoding bits and simplifies the computation…”
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Hybrid Precoding With Partially Connected Structure for Millimeter Wave Massive MIMO OFDM: A Parallel Framework and Feasibility Analysis by Dsouza, Kevin Bradley, Prasad, K. N. R. Surya Vara, Bhargava, Vijay K.

“… A low-complexity algorithm which exploits the block diagonal phase-only nature of the analog precoder in a partially connected structure is proposed to arrive at a hybrid precoding solution…”
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Optimized BD-ZF Precoder for Multiuser MIMO-VFDM Cognitive Transmission by Yao, Rugui, Xu, Juan, Li, Geng, Wang, Ling

“…In this paper, we study an optimized block-diagonal zero-forcing (BD-ZF) precoder in a two-tiered cognitive network consisting of a macro cell (MC) and a small cell (SC…”
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Channel Estimation Considerate Precoder Design for Multi-User Massive MIMO-OFDM Systems: The Concept and Fast Algorithms by Liu, Junkai, Zhang, Wei, Jiang, Yi

“… To address the computational complexity of 6G large-scale multi-input multi-output (MIMO) systems, we propose a computationally-efficient space-time block diagonal channel shortening (ST-BDCS) precoding scheme…”
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Deep Learning based Joint Precoder Design and Antenna Selection for Partially Connected Hybrid Massive MIMO Systems by Salman Khalid, Waqas bin Abbas, Farhan Khalid

“… This subset is again fed to the second CNN to obtain the block diagonal precoder for a partially connected…”
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Improved ZF-like Intra-Tier Precoder for A VFDM Based Two-Tier System by Yao, Rugui, Jiang, Pengfei, Yao, Lukun, Gao, Yan, Zhang, Yuxin, Zuo, Xiaoya

“…) in SCs to handle intra-tier interference. Although block-diagonal zero-forcing (BD-ZF) ITP can completely suppress the interference among the SCs, it also causes loss of some transmitted dimensions…”
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Two-Way MIMO Relay Precoder Design with Channel State Information by Li, Chunguo, Yang, Luxi, Zhu, Wei-Ping

“… relaying mechanism as well as the block-diagonal nature of the relay precoding matrix, this optimization problem cannot be solved by existing one-way relaying methods…”
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A nearly optimal amplify-and-forward relaying scheme for two-hop MIMO multi-relay networks by Fu, Youhua, Yang, Luxi, Zhu, Wei-Ping

“…), revealing that it is possible to maximize the information rate by designing properly the relay precoder as a block-diagonal matrix…”
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Energy-efficient optimal relay design for wireless sensor network in underground mines by Alam, Md Zahangir, Ammari, Mohamed Lassaad, Jamalipour, Abbas, Fortier, Paul

“…The transceiver design for multi-hop multiple-input multiple-output (MIMO) relay is very challenging, and for a large scale network, it is not economical to…”
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Hybrid block diagonalization precoding for multi-user weighted sum-rate maximization by Xiaofeng, Su, Yi, Jiang

“… We develop a hybrid precoding design to maximize the weighted sum-rate (WSR) of the users by optimizing the digital and the analog precoders alternately…”
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Near-optimal hybrid precoding for millimeter wave massive MIMO systems via cost-efficient Sub-connected structure by Huang, Yu, Liu, Chen, Song, Yunchao, Yu, Xiaolei

“…) criterion, the optimal design of the proposed hybrid precoders is non-convex. The original problem is reformulated as two optimisation sub-problems, where one of the sub-problems is convex and another is non-convex…”
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