Results 91 to 100 of about 38,046,255 (222)
Robust adaptive beamforming using a Bayesian steering vector error model [PDF]
, 2013 We propose a Bayesian approach to robust adaptive beamforming which entails considering the steering vector of interest as a random variable with some prior distribution.
Bidon, Stéphanie, Besson, Olivier
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Reducing feedback requirements of the multiple weight opportunistic beamforming scheme via selective multiuser diversity [PDF]
, 2008 Opportunistic beamforming (OB) relies on the transmission of Channel State Information (CSI) in the form of instantaneous Signal to Noise Ratio (SNR) from Mobile Stations (MSs) back to the Base Station (BS) for scheduling purposes that increase ...
Nicolaou, M +5 more
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IEEE AccessHybrid beamforming is an essential technique to overcome the high path-loss of millimeter wave (mmWave) communications and allows a design trade-off between complexity and performance of fully digital and analog beamforming.
Yuchen Huang +2 more
doaj +1 more source
, 2010 The downlink minimum bit error rate (MBER) transmit beamforming is directly designed based on the uplink MBER receive beamforming solution for time division duplex (TDD) space-division multiple-access (SDMA) induced multiple-input multiple-output (MIMO ...
Yang, Lie-Liang, Chen, Sheng
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A minimum approximate-BER beamforming approach for PSK modulated wireless systems
, 2008 A beamforming algorithm is introduced based on the general objective function that approximates the bit error rate for the wireless systems with binary phase shift keying and quadrature phase shift keying modulation schemes.
Hong, Xia +3 more
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Multidimensional Waveform Encoding for Synthetic Aperture Radar Remote Sensing [PDF]
, 2007 This paper introduces and analyses the innovative concept of multidimensional waveform encoding for spaceborne synthetic aperture radar (SAR). The combination of this technique with digital beamforming on receive enables a new class of highly ...
Moreira, Alberto +5 more
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Beamforming method: suppression of spatial aliasing using moving arrays
, 2008 In the scientific and industrial community a growing interest is nowadays devoted to sound source localization techniques. Among all the existing methods, the use of the beamforming algorithm in sound source localization problems is increasing, thanks ...
LURATI M. +3 more
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Semi-blind adaptive beamforming for high-throughput quadrature amplitude modulation systems
, 2010 A semi-blind adaptive beamforming scheme is proposed for wireless systems that employ high-throughput quadrature amplitude modulation signalling. A minimum number of training symbols, equal to the number of receiver antenna arrays elements, are first ...
Sheng Chen +5 more
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Genetic Algorithm Assisted Error Probability Optimisation for Beamforming
, 2004 A novel Genetic Algorithm (GA) assisted direct error probability optimisation technique is proposed for adaptive beamforming, which reduces the achievable error probability by nearly two orders of magnitude at a signal-to-noise ratio of 10dB in the ...
Wolfgang, A. +3 more
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Digital Beamforming Implemented in Hardware [PDF]
Digital beamforming is a popular method used in modern communication systems. The ability to track and locate a transmitting signal adaptively is necessary in communication systems. Beamforming is one solution to this problem.
Dulieu, Nicole
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