Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Alegria, Juan Vidal"'
The next generation wireless systems will face stringent new requirements, including ultra-low latency, high data rates and enhanced reliability. Large Intelligent Surfaces, is one proposed solution that has the potential to solve these high demands.
Externí odkaz:
http://arxiv.org/abs/2411.19147
We analyze the performance of large intelligent surface (LIS) with hardware distortion at its RX-chains. In particular, we consider the memory-less polynomial model for non-ideal hardware and derive analytical expressions for the signal to noise plus
Externí odkaz:
http://arxiv.org/abs/2411.04702
In this paper we study an over-the-air (OTA) approach for digital pre-distortion (DPD) and reciprocity calibration in massive multiple-input-multiple-output systems. In particular, we consider a memory-less non-linearity model for the base station (B
Externí odkaz:
http://arxiv.org/abs/2411.04689
Autor:
Alegría, Juan Vidal, Edfors, Ove
Large intelligent surface (LIS) has gained momentum as a potential 6G-enabling technology that expands the benefits of massive multiple-input multiple-output (MIMO). On the other hand, orthogonal space-division multiplexing (OSDM) may give a promisin
Externí odkaz:
http://arxiv.org/abs/2405.01919
We envision a future in which multi-antenna technology effectively exploits the spatial domain as a set of non-interfering orthogonal resources, allowing for flexible resource allocation and efficient modulation/demodulation. Reconfigurable intellige
Externí odkaz:
http://arxiv.org/abs/2403.15165
Reconfigurable surface (RS) has been shown to be an effective solution for improving wireless communication links in general multi-user multiple-input multiple-output (MU-MIMO) setting. Current research efforts have been largely directed towards the
Externí odkaz:
http://arxiv.org/abs/2310.19409
Autor:
Alegría, Juan Vidal, Rusek, Fredrik
Publikováno v:
IEEE Trans. Sig. Proc., 71, 2023, 2879-2894
With the increase in the number of antennas at base stations (BSs), centralized multi-antenna architectures have encountered scalability problems from excessive interconnection bandwidth to the central processing unit (CPU), as well as increased proc
Externí odkaz:
http://arxiv.org/abs/2309.04297
Autor:
Alegria, Juan Vidal, Rusek, Fredrik
Publikováno v:
Proc. IEEE GLOBECOM Wkshps, 2022, 37-42
Orthogonal multi-user multiple-input multiple-output (MU-MIMO) channels allow for optimum performance with simplified precoding/equalization, and they achieve maximum multiplexing gain which is shared fairly among users. Reconfigurable intelligent su
Externí odkaz:
http://arxiv.org/abs/2304.14804
Publikováno v:
IEEE Trans. Sig. Proc., 69, 2021, 3627-3641
Current research on multi-antenna architectures is trending towards increasing the amount of antennas in the base stations (BSs) so as to increase the spectral efficiency. As a result, the interconnection bandwidth and computational complexity requir
Externí odkaz:
http://arxiv.org/abs/2012.00572
Publikováno v:
Proc. IEEE ICC Wkshp., 2020, 1-6
Typical massive multiple-input multiple-output (MIMO) architectures consider a centralized approach, in which all baseband data received by each antenna has to be sent to a central processing unit (CPU) to be processed. Due to the enormous amount of
Externí odkaz:
http://arxiv.org/abs/2003.01961