Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Castellanos, Miguel R."'
Autor:
Björnson, Emil, Chae, Chan-Byoung, Heath Jr., Robert W., Marzetta, Thomas L., Mezghani, Amine, Sanguinetti, Luca, Rusek, Fredrik, Castellanos, Miguel R., Jun, Dongsoo, Demir, Özlem Tugfe
The increasing demand for wireless data transfer has been the driving force behind the widespread adoption of Massive MIMO (multiple-input multiple-output) technology in 5G. The next-generation MIMO technology is now being developed to cater to the n
Externí odkaz:
http://arxiv.org/abs/2401.02844
Antenna behaviors such as mutual coupling, near-field propagation, and polarization cannot be neglected in signal and channel models for wireless communication. We present an electromagnetic-based array manifold that accounts for several complicated
Externí odkaz:
http://arxiv.org/abs/2311.04835
Autor:
Deshpande, Nitish, Castellanos, Miguel R., Khosravirad, Saeed R., Du, Jinfeng, Viswanathan, Harish, Heath Jr, Robert W.
Impedance-matching networks affect power transfer from the radio frequency (RF) chains to the antennas. Their design impacts the signal to noise ratio (SNR) and the achievable rate. In this paper, we maximize the information-theoretic achievable rate
Externí odkaz:
http://arxiv.org/abs/2310.09723
Multi-band operation in wireless networks can improve data rates by leveraging the benefits of propagation in different frequency ranges. Distinctive beam management procedures in different bands complicate band assignment because they require consid
Externí odkaz:
http://arxiv.org/abs/2308.13202
Dynamic metasurface antennas (DMA) provide a solution to form compact, cost-effective, energy-efficient multiple-input-multiple output (MIMO) arrays. In this paper, we implement a practical hierarchical codebook with a realistic DMA design through el
Externí odkaz:
http://arxiv.org/abs/2305.09016
Cooperative relays improve reliability and coverage in wireless networks by providing multiple paths for data transmission. Relaying will play an essential role in vehicular networks at higher frequency bands, where mobility and frequent signal block
Externí odkaz:
http://arxiv.org/abs/2212.09862
Autor:
Deshpande, Nitish, Castellanos, Miguel R., Khosravirad, Saeed R., Du, Jinfeng, Viswanathan, Harish, Heath Jr, Robert W.
The narrowband and far-field assumption in conventional wireless system design leads to a mismatch with the optimal beamforming required for wideband and near-field systems. This discrepancy is exacerbated for larger apertures and bandwidths. To char
Externí odkaz:
http://arxiv.org/abs/2206.14323
Autor:
Castellanos, Miguel R., Raghavan, Vasanthan, Ryu, Jung H., Koymen, Ozge H., Li, Junyi, Love, David J., Peleato, Borja
The focus of this paper is on multi-user MIMO transmissions for millimeter wave systems with a hybrid precoding architecture at the base-station. To enable multi-user transmissions, the base-station uses a cell-specific codebook of beamforming vector
Externí odkaz:
http://arxiv.org/abs/1802.05146
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Akademický článek
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