搜索结果: 1-14 共查到“beamforming”相关记录14条 . 查询时间(0.06 秒)
Robust minimum variance beamforming
Ellipsoidal calculus Hadamard product robust beamforming second-order cone programming
2015/8/10
This paper introduces an extension of minimum variance beamforming, also known as Capon's method, that explicitly takes into account variation or uncertainty in the assumed array response. Sources of ...
In this letter, we show that worst-case robust beamforming, with uncertain weights subject to multiplicative variations, can be cast as a convex optimization problem. We interpret this robust beamform...
A tractable method for robust downlink beamforming in wireless communications
Wireless communication system sound localization noise signal interference ratio
2015/8/10
In downlink beamforming in a multiple-input multiple-output (MIMO) wireless communication system, we design beamformers that minimize the power subject to guaranteeing given signal-to-interference noi...
Robust Minimum Variance Beamforming
Ellipsoidal calculus Hadamard product robust beamforming second-order cone programming
2015/7/10
This paper introduces an extension of minimum variance beamforming, also known as Capon's method, that explicitly takes into account variation or uncertainty in the assumed array response. Sources of ...
Beamforming with Uncertain Weights
Regularization robust beamforming robust optimization robust sensor array signal processing
2015/7/10
In this letter, we show that worst-case robust beamforming, with uncertain weights subject to multiplicative variations, can be cast as a convex optimization problem. We interpret this robust beamform...
A Tractable Method for Robust Downlink Beamforming in Wireless Communications
Tractable Method Robust Downlink Beamforming Wireless Communications
2015/7/10
In downlink beamforming in a multiple-input multiple-output (MIMO) wireless communication system, we design beamformers that minimize the power subject to guaranteeing given signal-to-interference noi...
Robust Beamforming via Worst-Case SINR Maximization
Beamforming convex optimization signal-to-interference-plus-noise ratio (SINR)
2015/7/9
Minimum variance beamforming, which uses a weight vector that maximizes the signal to interference plus noise ratio (SINR), is often sensitive to estimation error and uncertainty in the parameters, st...
Optimal Basis For Ultrasound RF Apertures: Applications to Real-Time Compression and Beamforming
ultrasound rf compression beamforming Karhunen-Loeve Transform 2D FFT
2014/12/8
Modern medical ultrasound machines produce enormous amounts of data, as much as several gigabytes/sec in some systems. The challenges of generating, storing, processing and reproducing such voluminous...
Worst-Case Robust Multiuser Transmit Beamforming Using Semidefinite Relaxation: Duality and Implications
Worst-Case Robust Multiuser Semidefinite Relaxation Duality Implications Information Theory
2012/4/17
This paper studies a downlink multiuser transmit beamforming design under spherical channel uncertainties, using a worst-case robust formulation. This robust design problem is nonconvex. Recently, a c...
Optimal Selective Feedback Policies for Opportunistic Beamforming
Opportunistic beamforming vector broadcast channels selective feedback sum-rate majorization
2011/9/20
Abstract: This paper studies the structure of downlink sum-rate maximizing selective decentralized feedback policies for opportunistic beamforming under finite feedback constraints on the average numb...
Prescient Beamforming by Primary Transmitters in Interweave Cognitive Radio Networks with a Single Primary Receiver
Cognitive radios spectrum sensing interference mitigation beamforming dirty-paper coding
2011/9/15
Abstract: This work investigates a fundamentally novel interweave cognitive radio network where the primary transmitter takes a proactive approach towards improving the accuracy of the spectrum sensin...
Distributed Robust Multi-Cell Coordinated Beamforming with Imperfect CSI: An ADMM Approach
coordinated multi-point (CoMP) multi-cell processing beamforming robust beamforming
2011/9/1
Abstract: Multi-cell coordinated beamforming (MCBF), where multiple base stations (BSs) collaborate with each other in the beamforming design for mitigating the inter-cell interference, has been a sub...
Beamforming on the MISO interference channel with multi-user decoding capability
the MISO interference channel multi-user decoding capability Information Theory
2011/8/23
Abstract: This paper considers the multiple-input-single-output interference channel (MISO-IC) with interference decoding capability (IDC), so that the interference signal can be decoded and subtracte...
A Novel Beamforming Technique for Highways Coverage Using High-Altitude Platforms
Novel Beamforming Technique Highways Coverage High-Altitude Platforms
2009/9/4
This paper proposes a novel beamforming technique to form an arbitrary-shaped cell for the high-altitude platforms (HAPs) mobile communications. The new technique is based on pattern summation of indi...