Search Results - "Zetterberg, Per"

Experimental Investigation of TDD Reciprocity-Based Zero-Forcing Transmit Precoding by Zetterberg, Per

“…We describe an implementation of TDD reciprocity based zero-forcing linear precoding on a wireless testbed. A calibration technique which self-calibrates the…”
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Open Source SDR Frontend and Measurements for 60-GHz Wireless Experimentation by Zetterberg, Per, Fardi, Ramin

“…This paper aims to make 60-GHz experimentation possible for a wider range of research groups. We do this by describing a low-cost front-end that can be used in…”
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Capon with steering vector errors by Zetterberg, Per

“…The Capon (a.k.a MVDR) beamformer (CB) has a reputation of being very sensitive to steering vector errors - to the point of performing worse than the…”
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Peak-picking in Spatial Spectra by Zetterberg, Per

“…In passive SONAR, methods such as conventional beamforming, Capon and MUSIC are often used to calculate the spatial spectrum. It is basically a curve…”
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Experimental Investigation of Cooperative Schemes on a Real-Time DSP-Based Testbed by Zetterberg, Per, Mavrokefalidis, Christos, Lalos, Aris S., Matigakis, Emmanouil

“…Experimental results on the well-known cooperating relaying schemes, amplify-and-forward (AF), detect-and-forward (DF), cooperative maximum ratio combining…”
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Interference alignment (IA) and coordinated multi-point (CoMP) with IEEE802.11AC feedback compression: Testbed results by Zetterberg, Per

“…We have implemented interference alignment (IA) and joint transmission coordinated multipoint (CoMP) on a wireless testbed using the feedback compression…”
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Underwater Acoustic Communication With Multicarrier Binary Frequency Shift Keying by Zetterberg, Per, Lindqvist, Fredrik, Nilsson, Bernt

“…This article describes a novel approach for robust and reliable underwater acoustic communication targeting low data rate applications in very challenging…”
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Experimental Investigation of Cooperative Schemes on a Real-Time DSP-Based Testbed by Zetterberg, Per, Mavrokefalidis, Christos, Lalos, Aris S, Matigakis, Emmanouil

“…Experimental results on the well-known cooperating relaying schemes, amplify-and-forward (AF), detect-and-forward (DF), cooperative maximum ratio combining…”
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Inter- and Intrasite Correlations of Large-Scale Parameters from Macrocellular Measurements at 1800 MHz by Jaldén, Niklas, Zetterberg, Per, Ottersten, Björn, Garcia, Laura

“…: The inter- and intrasite correlation properties of shadow fading and power-weighted angle spread at both the mobile station and the base station are studied…”
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Realization of a Spatially Multiplexed MIMO System by Samuelsson, David, Jaldén, Joakim, Zetterberg, Per, Ottersten, Björn

“…: Multi-antenna systems can provide improvements in wireless systems increasing spectral efficiency, reliability, range, and system capacity. Herein we show…”
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Capacity Limits and Multiplexing Gains of MIMO Channels with Transceiver Impairments by Bjornson, E., Zetterberg, P., Bengtsson, M., Ottersten, B.

“…The capacity of ideal MIMO channels has a high-SNR slope that equals the minimum of the number of transmit and receive antennas. This letter analyzes if this…”
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Measurements of MIMO Indoor Channels at 1800 MHz with Multiple Indoor and Outdoor Base Stations by García, Laura, Jaldén, Niklas, Lindmark, Björn, Zetterberg, Per, de Haro, Leandro

“…This paper proposes several configurations for multiple base stations in indoor MIMO systems and compares their performance. The results are based on channel…”
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Measurements of MIMO Indoor Channels at 1800 MHz with Multiple Indoor and Outdoor Base Stations by García, Laura, Jaldén, Niklas, Lindmark, Björn, Zetterberg, Per, de Haro, Leandro

“…: This paper proposes several configurations for multiple base stations in indoor MIMO systems and compares their performance. The results are based on channel…”
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Noise distribution in SENSE- and GRAPPA-reconstructed images: a computer simulation study by Thunberg, Per, Zetterberg, Per

“…Abstract This work presents a descriptive study of noise distributions in images reconstructed according to the parallel imaging methods SENSE and GRAPPA. In…”
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Interference Alignment (IA) and Coordinated Multi-Point (CoMP) Overheads and RF Impairments: Testbed Results by Zetterberg, Per

“…In this work we investigate the network MIMO techniques of interference alignment (IA) and joint transmission coordinated multipoint (CoMP) in an indoor very…”
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Phase-Noise Mitigation in OFDM by Best Match Trajectories by Negusse, Senay, Zetterberg, Per, Handel, Peter

“…This paper proposes a novel approach to phase-noise compensation. The basic idea is to approximate the phase-noise statistics by a finite number of…”
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IEEE-STD-1057 Three Parameter Sine Wave Fit for SNR Estimation: Performance Analysis and Alternative Estimators by Negusse, Senay, Handel, Peter, Zetterberg, Per

“…This paper considers the three-parameter-fit sine wave model. Under a Gaussian noise assumption, it is known that the three-parameter fit given in IEEE…”
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Approximate Maximum Likelihood Estimation of Rician K-Factor and Investigation of Urban Wireless Measurements by Medawar, S., Handel, P., Zetterberg, P.

“…We consider the problem of estimating the K-factor of a Rician fading wireless channel based on observations of the envelope only, i.e., without…”
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Experimental Investigation of TDD Reciprocity-Based Zero-Forcing Transmit Precoding by Zetterberg, Per

“…We describe an implementation of TDD reciprocity based zero-forcing linear precoding on a wireless testbed. A calibration technique which self-calibrates the…”
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WiFi fingerprint indoor positioning system using probability distribution comparison by Le Dortz, N., Gain, F., Zetterberg, P.

“…Positioning services are increasingly used for applications such as navigation, advertising and social media. While outdoor navigation based on GPS and/or…”
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