Search Results - "Gaspar, Ivan"

Deep CNN-Based Channel Estimation for mmWave Massive MIMO Systems by Dong, Peihao, Zhang, Hua, Li, Geoffrey Ye, Gaspar, Ivan Simoes, NaderiAlizadeh, Navid

“…For millimeter wave (mmWave) massive multiple-input multiple-output (MIMO) systems, hybrid processing architecture is usually used to reduce the complexity and…”
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A synchronization technique for generalized frequency division multiplexing by Gaspar, Ivan S, Mendes, Luciano L, Michailow, Nicola, Fettweis, Gerhard

“…Generalized frequency division multiplexing (GFDM) is a block filtered multicarrier modulation scheme recently proposed for future wireless communication…”
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Expectation Propagation for Near-Optimum Detection of MIMO-GFDM Signals by Dan Zhang, Mendes, Luciano Leonel, Matthe, Maximilian, Gaspar, Ivan Simoes, Michailow, Nicola, Fettweis, Gerhard P.

“…Generalized frequency division multiplexing (GFDM) as a nonorthogonal waveform aims at diverse applications in future mobile networks. To evaluate its…”
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Generalized Frequency Division Multiplexing for 5th Generation Cellular Networks by Michailow, Nicola, Matthe, Maximilian, Gaspar, Ivan Simoes, Caldevilla, Ainoa Navarro, Mendes, Luciano Leonel, Festag, Andreas, Fettweis, Gerhard

“…Cellular systems of the fourth generation (4G) have been optimized to provide high data rates and reliable coverage to mobile users. Cellular systems of the…”
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Using Converter Dust to Produce Low Cost Cementitious Composites by in situ Carbon Nanotube and Nanofiber Synthesis by Ludvig, Péter, Calixto, José M, Ladeira, Luiz O, Gaspar, Ivan C P

“…Carbon nanotubes (CNTs) and nanofibers (CNFs) were synthesized on clinker and silica fume particles in order to create a low cost cementitious nanostructured…”
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Robust WHT-GFDM for the Next Generation of Wireless Networks by Michailow, Nicola, Mendes, Luciano, Matthe, Maximilian, Gaspar, Ivan, Festag, Andreas, Fettweis, Gerhard

“…This paper presents the combination of generalized frequency division multiplexing (GFDM) with the Walsh-Hadamard transform (WHT) to achieve a scheme that is…”
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Frequency-Shift Offset-QAM for GFDM by Gaspar, Ivan, Matthe, Maximilian, Michailow, Nicola, Leonel Mendes, Luciano, Zhang, Dan, Fettweis, Gerhard

“…This paper presents a novel perspective to apply the offset quadrature amplitude modulation (OQAM) scheme on top of the multicarrier waveform termed…”
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Deep CNN for Wideband Mmwave Massive Mimo Channel Estimation Using Frequency Correlation by Dong, Peihao, Zhang, Hua, Li, Geoffrey Ye, NaderiAlizadeh, Navid, Gaspar, Ivan Simoes

“…For millimeter wave (mmWave) systems with large-scale arrays, hybrid processing structure is usually used at both transmitters and receivers to reduce the…”
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Precoded GFDM transceiver with low complexity time domain processing by Matthé, Maximilian, Mendes, Luciano, Gaspar, Ivan, Michailow, Nicola, Zhang, Dan, Fettweis, Gerhard

“…Future wireless communication systems are demanding a more flexible physical layer. GFDM is a block filtered multicarrier modulation scheme proposed to add…”
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Deep CNN-Based Channel Estimation for mmWave Massive MIMO Systems by Dong, Peihao, Zhang, Hua, Li, Geoffrey Ye, Gaspar, Ivan Simoes, NaderiAlizadeh, Navid

“…in IEEE Journal of Selected Topics in Signal Processing, vol. 13, no. 5, pp. 989-1000, Sept. 2019 For millimeter wave (mmWave) massive multiple-input…”
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Synchronization Using a Pseudo-Circular Preamble for Generalized Frequency Division Multiplexing in Vehicular Communication by Gaspar, Ivan, Festag, Andreas, Fettweis, Gerhard

“…This paper explores using the first subsymbol in the structure of a GFDM symbol as a pseudo circular preamble. As data and training sequence overlap in the…”
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Multi-user time-reversal STC-GFDMA for future wireless networks by Matthe, Maximilian, Mendes, Luciano Leonel, Gaspar, Ivan, Michailow, Nicola, Zhang, Dan, Fettweis, Gerhard

“…The challenges of future wireless networks imply that the physical layer of the next generation mobile communication system needs to be compatible with…”
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Near-ML Detection for MIMO-GFDM by Matthe, Maximilian, Gaspar, Ivan, Zhang, Dan, Fettweis, Gerhard

“…For upcoming 5G networks, new challenges are posed on the physical layer, which go beyond increased data rate. Generalized Frequency Division Multiplexing…”
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Low Complexity GFDM Receiver Based on Sparse Frequency Domain Processing by Gaspar, Ivan, Michailow, Nicola, Navarro, Ainoa, Ohlmer, Eckhard, Krone, Stefan, Fettweis, Gerhard

“…Generalized frequency division multiplexing (GFDM) is a multi-carrier modulation scheme. In contrast to the traditional orthogonal frequency division…”
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Flexible GFDM Implementation in FPGA with Support to Run-Time Reconfiguration by Danneberg, Martin, Michailow, Nicola, Gaspar, Ivan, Zhang, Dan, Fettweis, Gerhard

“…Innovative 5G applications will challenge future cellular systems with new requirements. The OFDM based 4G standard will not be able to address all of them…”
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5GNOW: Challenging the LTE Design Paradigms of Orthogonality and Synchronicity by Wunder, Gerhard, Kasparick, Martin, ten Brink, Stephan, Schaich, Frank, Wild, Thorsten, Gaspar, Ivan, Ohlmer, Eckhard, Krone, Stefan, Michailow, Nicola, Navarro, Ainoa, Fettweis, Gerhard, Ktenas, Dimitri, Berg, Vincent, Dryjanski, Marcin, Pietrzyk, Slawomir, Eged, Bertalan

“…LTE and LTE-Advanced have been optimized to deliver high bandwidth pipes to wireless users. The transport mechanisms have been tailored to maximize single cell…”
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Reduced Complexity Calculation of LMMSE Filter Coefficients for GFDM by Matthe, Maximilian, Gaspar, Ivan, Dan Zhang, Fettweis, Gerhard

“…A low-complexity algorithm for calculation of LMMSE filter coefficients for Generalized Frequency Division Multiplexing (GFDM) in a fading multipath…”
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Non-Data Aided Frequency Synchronization Exploiting ICI in Non-Orthogonal Systems by Kadur, Tobias, Gaspar, Ivan, Michailow, Nicola, Fettweis, Gerhard

“…Existing non data-aided synchronization schemes for OFDM in particular exploit the redundancy implemented by the CP to perform a time and frequency offset…”
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Influence of pulse shaping on bit error rate performance and out of band radiation of Generalized Frequency Division Multiplexing by Matthé, Maximilian, Michailow, Nicola, Gaspar, Ivan, Fettweis, Gerhard

“…Generalized Frequency Division Multiplexing (GFDM) is a multicarrier transmission scheme that offers flexible pulse shaping of individual subcarriers. The…”
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An Embedded Midamble Synchronization Approach for Generalized Frequency Division Multiplexing by Gaspar, Ivan, Fettweis, Gerhard

“…This work presents a synchronization approach using an embedded training sequence in the payload of a Generalized Frequency Division Multiplexing (GFDM)…”
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