Results 11 to 20 of about 1,839 (179)

Efficient Constant Envelope Precoding for Massive MU-MIMO Downlink via Majorization-Minimization Method [PDF]

open access: yesEntropy
The practical implementation of massive multi-user multi-input–multi-output (MU-MIMO) downlink communication systems power amplifiers that are energy efficient; otherwise, the power consumption of the base station (BS) will be prohibitive.
Rui Liang   +3 more
doaj   +2 more sources

Deep Video Precoding [PDF]

open access: yesIEEE Transactions on Circuits and Systems for Video Technology, 2020
16 pages, 14 figures, 11 tables, to appear in IEEE Trans. Circ. Syst.
Eirina Bourtsoulatze   +4 more
openaire   +3 more sources

Constellation Precoded Beamforming [PDF]

open access: yesGLOBECOM 2009 - 2009 IEEE Global Telecommunications Conference, 2009
We present and analyze the performance of constellation precoded beamforming. This multi-input multi-output transmission technique is based on the singular value decomposition of a channel matrix. In this work, the beamformer is precoded to improve its diversity performance.
Hong Ju Park, Ender Ayanoglu
openaire   +2 more sources

Hybrid Precoding for mmWave MIMO Systems With Overlapped Subarray Architecture

open access: yesIEEE Access, 2022
Traditional precoding is incompatible with millimetre wave (mmWave) multiple input multiple output (MIMO) systems due to hardware costs and power consumption.
Faisal Al-Kamali   +2 more
doaj   +1 more source

Precoder Distribution and Adaptive Codebook in Wideband Precoding [PDF]

open access: yesETRI Journal, 2012
Based on wideband precoding (WBP) in the multiple-input multiple-output orthogonal frequency division multiplexing system, an adaptive nonuniform codebook is presented in this paper. The relationship between the precoder distribution and spatial correlation is analyzed at first.
Long, Hang   +5 more
openaire   +2 more sources

Low-Complexity Hybrid Precoding for Subarray Architecture mmWave MIMO Systems

open access: yesIEEE Access, 2022
Hybrid precoding for millimeter wave (mmWave) multiple-input multiple-output (MIMO) systems has attracted much attention in recent years for subarray architecture compared to array architecture because of its low cost and low power consumption.
Faisal Al-Kamali, Claude D'amours
doaj   +1 more source

A Unified Framework for Precoding and Pilot Design for FDD Symbol-Level Precoding [PDF]

open access: yesIEEE Transactions on Wireless Communications, 2022
Large-scale antenna array techniques are key enablers for modern wireless communication systems. Channel state information (CSI) is indispensable for large-scale multi-antenna systems, but is challenging to obtain. To tackle this issue, in this paper we propose a unified precoding and pilot design frame-work, that allows minimal and precoding-sensitive
Jianjun Zhang 0008, Christos Masouros
openaire   +1 more source

Antenna Selection and Precoding Joint Algorithm in CoMP System [PDF]

open access: yesJisuanji gongcheng, 2017
Aiming at the problem that too many antennas of large-scale Multiple Input Multiple Output(MIMO) system increases the amount of calculation of precoding algorithm,this paper adopts the method combining antenna selection algorithm with traditional ...
CHANG Youbao,GE Wenping,HAN Qianfang
doaj   +1 more source

Hybrid precoding for mmWave massive MU-MIMO systems with overlapped subarray: A modified GLRAM approach

open access: yesICT Express, 2021
Mmillimeter-wave (mmWave) massive multiuser multiple-input multiple-output (MU-MIMO) system usually utilizes hybrid precoding to reduce complex hardware and high energy consumption.
Ting Ding, Yongjun Zhao, Lei Zhang
doaj   +1 more source

Multi-user hybrid precoding for mmWave massive MIMO systems with sub-connected structure

open access: yesEURASIP Journal on Wireless Communications and Networking, 2021
Hybrid precoding achieves a compromise between the sum rate and hardware complexity of millimeter wave (mmWave) massive multiple-input multiple-output (MIMO) systems.
Jianhe Du   +4 more
doaj   +1 more source

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