Zobrazeno 1 - 10 of 235 pro vyhledávání: '"Ana I. Perez-Neira"'
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Akademický článek
Scalable Cell-Free Massive MIMO Networks With LEO Satellite Support
Autor: Felip Riera-Palou, Guillem Femenias, Marius Caus, Musbah Shaat, Ana I. Perez-Neira
Publikováno v: IEEE Access, Vol 10, Pp 37557-37571 (2022)
This paper presents an integrated network architecture combining a cell-free massive multiple-input multiple-output (CF-M-MIMO) terrestrial layout with a low Earth orbit satellite segment where the scalability of the terrestrial segment is taken into
Externí odkaz: https://doaj.org/article/a8268ff783894d548fe70946b0a1c39c
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3
Joint Optimization of Beam-Hopping Design and NOMA-Assisted Transmission for Flexible Satellite Systems
Autor: Anyue Wang, Lei Lei, Eva Lagunas, Ana I. Perez-Neira, Symeon Chatzinotas, Bjorn Ottersten
Publikováno v: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
r-CTTC. Repositorio Institucional Producción Científica del Centre Tecnològic de Telecomunicacions de Catalunya (CTTC)
instname
Next-generation satellite systems require more flexibility in resource management such that available radio resources can be dynamically allocated to meet time-varying and non-uniform traffic demands. Considering potential benefits of beam hopping (B
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::99c61ca303073011a4f5a3de9b281443
http://arxiv.org/abs/2110.06694
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4
Smart beamforming for direct LEO satellite access of future IoT
Autor: Marius Caus, Eduard Mendez, Ana I. Perez-Neira
Publikováno v: Sensors
Volume 21
Issue 14
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Sensors (Basel, Switzerland)
Sensors, Vol 21, Iss 4877, p 4877 (2021)
Non-terrestrial networks (NTN) are expected to play a key role in extending and complementing terrestrial 5G networks in order to provide services to air, sea, and un-served or under-served areas. This paper focuses the attention on the uplink, where
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::92fd4e0461e943360234753b7dbd349d
https://hdl.handle.net/2117/353532
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5
Precoding with received-interference power control for multibeam satellite communication systems
Autor: Bjorn Ottersten, Marc Martinez, Ana I. Perez-Neira, Eva Lagunas, Miguel Angel Lagunas, Miguel Angel Vazquez
Publikováno v: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Zero-Forcing (ZF) and Regularized Zero-Forcing (RZF) precoding are low-complexity sub-optimal solutions widely accepted in the satellite communications community to mitigate the resulting co-channel interference caused by aggressive frequency reuse.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bbe03d987136425b9da6e50c879a9271
https://hdl.handle.net/2117/361858
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6
Enhancing Cell-Free Massive MIMO networks through LEO Satellite Integration
Autor: Felip Riera-Palou, Marius Caus, Ana I. Perez-Neira, Guillem Femenias, Musbah Shaat, Jan Garcia-Morales
Publikováno v: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
WCNC Workshops
This paper proposes a hybrid network architecture combining a cell-free Massive MIMO terrestrial layout with a low Earth orbit satellite segment jointly targeting the maximization of the minimum per-user rate in the coverage area. Towards this end, a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4ffbfda165ccd20e33f8511a4cf7e4f7
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7
Precoding and Scheduling in Multibeam Multicast NOMA based Satellite Communication Systems
Autor: Miguel Angel Vazquez, Sareh Majidi Ivari, Yousef R. Shayan, Marius Caus, Ana I. Perez-Neira, M. Reza Soleymani
Publikováno v: ICC Workshops
In this paper, we propose a multibeam multicast non-orthogonal multiple access-based (MB-MC-NOMA) scheme for satellite communication systems. Building upon the multibeam transmission, we exploit precoding and NOMA techniques to deal with inter-and in
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3d3636e8eb739d466c68a7b92a772913
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8
NOMA-enabled multi-beam satellite systems: Joint optimization to overcome offered-requested data mismatches
Autor: Lei Lei, Symeon Chatzinotas, Bjorn Ottersten, Ana I. Perez-Neira, Anyue Wang, Eva Lagunas
Publikováno v: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
BASE-Bielefeld Academic Search Engine
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
r-CTTC: Repositorio Institucional Producción Científica del Centre Tecnològic de Telecomunicacions de Catalunya (CTTC)
Centre Tecnològic de Telecomunicacions de Catalunya (CTTC)
r-CTTC. Repositorio Institucional Producción Científica del Centre Tecnològic de Telecomunicacions de Catalunya (CTTC)
instname
Non-Orthogonal Multiple Access (NOMA) has potentials to improve the performance of multi-beam satellite systems. The performance optimization in satellite-NOMA systems can be different from that in terrestrial-NOMA systems, e.g., considering distinct
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8bd7c743f4f034675e17d4692ce73b7a
http://hdl.handle.net/2117/336058
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9
A technique for OFDM symbol slicing
Autor: Miguel Angel Lagunas, Ana I. Perez-Neira
Publikováno v: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
ICASSP
This work presents an orthonormal transform that splits the Orthogonal Frequency Division Multiplex (OFDM) symbol into slices with ranked rate and decoding complexity. The advantage over the existing carrier or time segmentation is that the proposed
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::546d518fd5082def18680a619f546ca7
http://hdl.handle.net/2117/354172
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10
New satellite random access preamble design based on pruned DFT-spread FBMC
Autor: Marius Caus, Ana I. Perez-Neira, Luis Blanco, Joan Bas
Publikováno v: IEEE TRANSACTIONS ON COMMUNICATIONS
r-CTTC: Repositorio Institucional Producción Científica del Centre Tecnològic de Telecomunicacions de Catalunya (CTTC)
Centre Tecnològic de Telecomunicacions de Catalunya (CTTC)
r-CTTC. Repositorio Institucional Producción Científica del Centre Tecnològic de Telecomunicacions de Catalunya (CTTC)
instname
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Next generation satellite payload technology is expected to provide digital processing capabilities. This will pave the way to regard satellites as flying base stations. However, the initial access procedure must be improved. In this work we focus on
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca477ce30cb44ac6b055623b9294e24c
https://hdl.handle.net/2117/335987
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