Results 101 to 110 of about 1,792,499 (213)

Performance analysis of layered random beamforming OFMDA with feedback reduction [PDF]

open access: yes, 2007
This paper presents a downlink performance analysis of a Layered Random Beamforming (LRB) - MIMO-OFDMA Physical Layer (PHY) with feedback reduction as applicable to future generation wireless communication systems.
Joe McGeehan   +9 more
core   +1 more source

An efficient scheme for broadband adaptive beamforming [PDF]

open access: yes, 1999
This paper introduces an oversampled subband approach to linearly constrained minimum variance adaptive broadband beamforming. This method is motivated by the considerable reduction in computation over fullband implementation and resulting large ...
S. Weiss   +13 more
core   +1 more source

Coordinated beamforming algorithm assisted by receive beamforming vector estimation

open access: yesTongxin xuebao, 2014
A distributed coordinated beamforming optimization scheme with the assistance of receive beamformer esti-mation was proposed for downlink cellular wireless communication systems. By sharing a small amount of information among cooperated base stations(BSs)
Ying HUANG, Gang-ming LV, Shi-hua ZHU
doaj   +2 more sources

Assessment and comparison of the performance of functional projection beamforming for aeroacoustic measurements

open access: yes, 2020
Functional Projection Beamforming (FPB) is a method proposed by Dougherty in 2019, based on functional beamforming. It yields the integrated sound spectrum for a given region of integration (ROI) within the functional beamforming source map. FPB does not
Dougherty, Robert P. (author)   +3 more
core  

Distributed transmit beamforming using feedback control

open access: yes, 2008
A simple feedback control algorithm is presented for distributed beamforming in a wireless network. A network of wireless sensors that seek to cooperatively transmit a common message signal to a Base Station (BS) is considered.
U. Madhow   +5 more
core  

Avaliação de erros de posicionamento de microfontes e influência da temperatura e umidade relativa na técnica de beamforming [PDF]

open access: yes, 2013
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-graduação em Engenharia Mecânica, Florianópolis, 2013Existe uma pressão contínua das pessoas e autoridades para a redução dos níveis de ruído das mais ...
Sanches, Diogo
core  

Distributed energy efficient beamforming algorithm for multicell multiuser downlink system

open access: yesTongxin xuebao, 2015
A distributed energy efficient beamforming algorithm was studied for multicell multiuser downlink communication system.Firstly,the energy efficient optimization problem was first considered as the maximization of the ratio between the system sum rate and
Wen-yang CHEN   +3 more
doaj   +2 more sources

Joint Power Control and Blind Beamforming over Wireless Networks: A Cross Layer Approach

open access: yesEURASIP Journal on Advances in Signal Processing, 2004
Traditional joint power control and beamforming achieve the targeted signal-to-interference-noise ratio (SINR) at the receivers by assuming the knowledge of the measurements of channel parameters and SINR. Blind beamforming is an effective technique for
Han Zhu, Farrokhi Farrokh R, Liu KJ Ray
doaj   +1 more source

Channel Sensing and Vision-Aided Distributed Beamforming for 6G Ultra-Dense Networks

open access: yesIEEE Access
This paper presents a beamforming strategy designed to optimize distributed beamforming (DSBF) in 6G ultra-dense networks. DSBF is a key enabler for high-frequency communications by spatially coordinating transmissions from geographically distributed ...
Hyung Joon Cho, Byonghyo Shim
doaj   +1 more source

Digital Beamforming Techniques for Spaceborne Radar Remote Sensing [PDF]

open access: yes, 2006
This paper introduces the innovative concept of multidimensional waveform encoding for spaceborne synthetic aperture radar. The combination of this technique with digital beamforming on receive enables a new generation of SAR systems with improved ...
Moreira, Alberto   +2 more
core  

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