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Listar por palabra clave "Channel estimation"

Mostrando ítems 1-10 de 10

42.13 Gbit/s 16QAM-OFDM photonics-wireless transmission in 75-110 GHz band

Deng, Lei; Liu, Deming; Pang, Xiaodan; Zhang, Xu; Arlunno, Valeria; Zhao, Ying; Caballero, Antonio; Dogadaev, Anton; Yu, Xianbin; Monroy, Ildefonso Tafur; Beltrán, Marta; Llorente Sáez, Roberto (EMW Publishing, 2012)

[EN] We present a simple architecture for realizing high capacity W-band (75-110 GHz) photonics-wireless system. 42.13 Gbit/s 16QAM-OFDM optical baseband signal is obtained in a seamless 15 GHz spectral bandwidth by using ...
A Comparison Between Concentrated and Distributed Massive MIMO Channels at 26 GHz in a Large Indoor Environment Using Ray-Tracing

Pérez, Jesús R.; Valle, Luis; Fernández, Óscar; Torres, Rafael P.; Rubio Arjona, Lorenzo; Rodrigo Peñarrocha, Vicent Miquel; Reig, Juan (Institute of Electrical and Electronics Engineers, 2022)

[EN] In this paper, a comparative analysis between concentrated and distributed massive multiple-input multiple-output channels (C-mMIMO and D-mMIMO respectively), in an indoor environment using ray-tracing (RT) in the 26 ...
A Joint Approach for Low-Complexity Channel Estimation in 5G Massive MIMO Systems

Bangash, kifayatullah; Khan, Imran; Lloret, Jaime; León Fernández, Antonio (MDPI AG, 2018-10)

[EN] Traditional Minimum Mean Square Error (MMSE) detection is widely used in wireless communications, however, it introduces matrix inversion and has a higher computational complexity. For massive Multiple-input Multiple-output ...
A Low Rank Channel Estimation Scheme in Massive Multiple-Input Multiple-Output

Shahjehan, Waleed; Waqar Shah, Syed; Lloret, Jaime; León Fernández, Antonio (MDPI AG, 2018)

[EN] Aiming at the problem of computational complexity of channel estimation, this paper proposes a low-complexity block matching pursuit (BMP) algorithm based on antenna grouping and block sparsity for frequency division ...
Analysis of the Rician K Factor in a Typical Millimeter-Wave Office Scenario

Rubio Arjona, Lorenzo; Rodrigo Peñarrocha, Vicent Miquel; Reig, Juan; Fernandez, H; Pérez, Jesus R.; Torres, Rafael P.; Valle, Luis (Institute of Electrical and Electronics Engineers, 2024-05)

[EN] In this letter, the K-factor is estimated in a typical office scenario based on wideband channel measurements carried out at millimeter-wave (mmWave) frequencies, covering the 25-40 GHz spectrum, in both line-of-sight ...
Delay Spread Estimation using a Game Engine Ray Based Model in Indoor Scenario at 5 GHz

Navarro Cadavid, Andres; Guevara, Dinael; Escalante, Diego; Vargas, José; Gómez, Jorge; Cardona Marcet, Narciso; Giménez Gandia, Jordi Joan (Asian Research Publishing Network (ARPN), 2016)

[EN] In this paper we show the results of a simulation of channel parameters using a Game Engine Ray based tool, developed by our group, which has been evolving during last few years. We show simulation results and compare ...
MIMO Scattered Pilot Performance and Optimization for ATSC 3.0

Shitomi, Takuya; Garro, Eduardo; Murayama, Kenichi; Gomez-Barquero, David (Institute of Electrical and Electronics Engineers, 2018)

[EN] ATSC 3.0 is the latest digital terrestrial television (DTT) standard, and it allows a higher spectral efficiency and/or a transmission robustness with multiple-input multiple-output (MIMO) technology compared to ...
Optimization of coverage in the millimeter wave band of the iTEAM-UPV private 5G network through measurements and ray tracing simulations

Tarazona Levano, Mauro Gonzalo (Universitat Politècnica de València, 2024-10-10)

[ES] La tesis aborda la evaluación, modelado y optimización de la cobertura en redes 5G milimétricas mediante mediciones de campo y simulaciones de trazado de rayos en el campus de la Universitat Politècnica de València ...
Performance evaluation of MIMO channel estimation for ATSC 3.0

Shitomi, Takuya; Garro, Eduardo; Murayama, Kenichi; Gomez-Barquero, David (IEEE, 2017-06-09)

[EN] ATSC 3.0, the latest Digital Terrestrial Television (DTT) standard, allows a higher spectral efficiency and/or a transmission robustness with Multiple-Input Multiple-Output (MIMO) technology compared to existing ...
Scattered Pilot Performance and Optimization for ATSC 3.0

Garro, Eduardo; Gimenez, Jordi Joan; Park, Sung Ik; Gomez-Barquero, David (Institute of Electrical and Electronics Engineers, 2017)

[EN] The next-generation U.S. digital terrestrial television (DTT) standard ATSC 3.0 is the most flexible DTT standard ever developed, outperforming the state-of-the-art digital video broadcasting-terrestrial 2nd generation ...