Search Results - "Slock, Dirk"
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1
Optimal Precoders for Tracking the AoD and AoA of a mmWave Path
Published in IEEE transactions on signal processing (01-11-2018)“…In millimeter-wave channels, most of the received energy is carried by a few paths. Traditional precoders sweep the angle-of-departure (AoD) and…”
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2
Large System Analysis of Linear Precoding in Correlated MISO Broadcast Channels Under Limited Feedback
Published in IEEE transactions on information theory (01-07-2012)“…In this paper, we study the sum rate performance of zero-forcing (ZF) and regularized ZF (RZF) precoding in large MISO broadcast systems under the assumptions…”
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3
Channel Estimation for Massive MIMO: An Information Geometry Approach
Published in IEEE transactions on signal processing (2022)“…In this paper, we investigate the channel estimation for massive multi-input multi-output orthogonal frequency division multiplexing (MIMO-OFDM) systems. Using…”
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4
Signal Detection for Ultra-Massive MIMO: An Information Geometry Approach
Published in IEEE transactions on signal processing (2024)“…In this paper, we propose an information geometry approach (IGA) for signal detection (SD) in ultra-massive multiple-input multiple-output (MIMO) systems. We…”
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Practical Hybrid Beamforming for Millimeter Wave Massive MIMO Full Duplex With Limited Dynamic Range
Published in IEEE open journal of the Communications Society (2022)“…Full Duplex (FD) radio has emerged as a promising solution to increase the data rates by up to a factor of two via simultaneous transmission and reception in…”
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6
Breaking the Gridlock of Spatial Correlations in GPS-Aided IEEE 802.11p-Based Cooperative Positioning
Published in IEEE transactions on vehicular technology (01-12-2016)“…Spatial correlations found in vehicular mobility are jeopardizing the precision level of cooperative positioning for future Cooperative Intelligent Transport…”
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7
An optimized unitary beamforming technique for MIMO broadcast channels
Published in IEEE transactions on wireless communications (01-03-2010)“…This paper addresses the problem of linear beamforming design in MIMO broadcast channels. An iterative optimization method for unitary beamforming is proposed,…”
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8
Detection of the number of superimposed signals using modified MDL criterion: A random matrix approach
Published in 2016 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) (01-03-2016)“…The problem of estimating the number of superimposed signals using noisy observations from N antennas is addressed. In particular, we are interested in the…”
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Conference Proceeding Journal Article -
9
Single snapshot joint estimation of angles and times of arrival: A 2D Matrix Pencil approach
Published in 2016 IEEE International Conference on Communications (ICC) (01-05-2016)“…Two algorithms for the problem of joint angles and delays of arrival (JADE) of multiple paths are presented. The algorithms are based on a generalisation of…”
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Conference Proceeding -
10
On spatio-frequential smoothing for joint angles and times of arrival estimation of multipaths
Published in 2016 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) (01-03-2016)“…A natural extension of the "Spatial" smoothing preprocessing technique is presented and analysed. It is well known that subspace methods do not work properly…”
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Conference Proceeding Journal Article -
11
On Maximum Likelihood Angle of Arrival Estimation Using Orthogonal Projections
Published in 2018 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) (01-04-2018)“…We present a novel and efficient approach for estimating the maximum likelihood (ML) estimates of the angles-of-arrival (AoAs) of multiple sources. The…”
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Conference Proceeding -
12
Performance and Complexity Analysis of Blind FIR Channel Identification Algorithms Based on Deterministic Maximum Likelihood in SIMO Systems
Published in Circuits, systems, and signal processing (01-04-2013)“…We analyze two algorithms that have been introduced previously for Deterministic Maximum Likelihood (DML) blind estimation of multiple FIR channels. The first…”
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13
A Newton-type Forward Backward Greedy method for multi-snapshot compressed sensing
Published in 2017 51st Asilomar Conference on Signals, Systems, and Computers (01-10-2017)“…Parameter estimation has applications in many applications of signal processing, such as Angle-of-Arrival (AoA) estimation. Compressed sensing is a widely…”
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Conference Proceeding -
14
Performance analysis of an AoA estimator in the presence of more mutual coupling parameters
Published in 2017 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) (01-03-2017)“…The problem of Angle-of-Arrival estimation of multiple sources in the presence of mutual coupling is addressed. In this paper, we derive a Mean-Squared-Error…”
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Conference Proceeding -
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On mutual coupling for ULAs: Estimating AoAs in the presence of more coupling parameters
Published in 2017 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) (01-03-2017)“…The problem of Angle-of-Arrival estimation of multiple sources in the presence of mutual coupling is addressed. The presence of unknown mutual coupling between…”
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Conference Proceeding -
16
How Much Feedback Is Required for TDD Multi-Antenna Broadcast Channels with User Selection?
Published in EURASIP journal on advances in signal processing (01-01-2010)“…The enormous gains in a multi-antenna transmitter broadcast channel require the Channel State Information at the Transmitter (CSIT). Although the fundamental…”
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17
Blind and semi-blind FIR multichannel estimation: (global) identifiability conditions
Published in IEEE transactions on signal processing (01-04-2004)“…Two channel estimation methods are often opposed: training sequence methods that use the information induced by known symbols and blind methods that use the…”
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18
Achieving the Optimal Diversity-Versus-Multiplexing Tradeoff for MIMO Flat Channels With QAM Space-Time Spreading and DFE Equalization
Published in IEEE transactions on information theory (01-12-2006)“…The use of multiple transmit (Tx) and receive (Rx) antennas allows to transmit multiple signal streams in parallel and hence to increase communication…”
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19
How Much Feedback Is Required for TDD Multi-Antenna Broadcast Channels with User Selection?
Published in EURASIP journal on advances in signal processing (01-01-2010)“…The enormous gains in a multi-antenna transmitter broadcast channel require the Channel State Information at the Transmitter (CSIT). Although the fundamental…”
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Journal Article -
20
On the convergence behavior of the LMS and the normalized LMS algorithms
Published in IEEE transactions on signal processing (01-09-1993)“…It is shown that the normalized least mean square (NLMS) algorithm is a potentially faster converging algorithm compared to the LMS algorithm where the design…”
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