Zobrazeno 1 - 10
of 2 647
pro vyhledávání: '"Stanczak, A."'
In this study, we revisit the performance analysis of distributed beamforming architectures in dense user-centric cell-free massive multiple-input multiple-output (mMIMO) systems in line-of-sight (LoS) scenarios. By incorporating a recently developed
Externí odkaz:
http://arxiv.org/abs/2409.03551
This letter presents simple analytical expressions for the spatial and temporal correlation functions in channels with von Mises-Fisher (vMF) scattering. In contrast to previous results, the expressions presented here are exact and based only on elem
Externí odkaz:
http://arxiv.org/abs/2409.01647
This paper presents an analytical analysis of the Doppler spectrum in von Mises-Fisher (vMF) scattering channels. A closed-form expression for the Doppler spectrum is derived and used to investigate the impact of vMF scattering parameters, i.e., the
Externí odkaz:
http://arxiv.org/abs/2409.01631
We propose a method for predicting the location of user equipment (UE) using wireless fingerprints in dynamic indoor non-line-of-sight (NLoS) environments. In particular, our method copes with the challenges posed by the drift, birth, and death of sc
Externí odkaz:
http://arxiv.org/abs/2408.13017
Autor:
Nayak, Shravan, Jain, Kanishk, Awal, Rabiul, Reddy, Siva, van Steenkiste, Sjoerd, Hendricks, Lisa Anne, Stańczak, Karolina, Agrawal, Aishwarya
Foundation models and vision-language pre-training have notably advanced Vision Language Models (VLMs), enabling multimodal processing of visual and linguistic data. However, their performance has been typically assessed on general scene understandin
Externí odkaz:
http://arxiv.org/abs/2407.10920
We reconsider the problem of joint power control and beamforming design to maximize the weighted sum rate in large and potentially cell-free massive MIMO networks. In contrast to the available short-term methods, where an iterative algorithm is run f
Externí odkaz:
http://arxiv.org/abs/2407.06050
Autor:
Wittig, Sven, Hernangomez, Rodrigo, Vardanyan, Karen, Askar, Ramez, Haj-Omar, Amr, Peter, Michael, Stanczak, Slawomir
The D-band, spanning 110 GHz to 170 GHz, has emerged as a relevant frequency range for future mobile communications and radar sensing applications, particularly in the context of 6G technologies. This demonstration presents a high-bandwidth, real-tim
Externí odkaz:
http://arxiv.org/abs/2407.04728
Autor:
Sode, Maik, Ponschab, Michael, Ribeiro, Lucas N., Haesloop, Sven, Tohidi, Ehsan, Peter, Michael, Stańczak, Sławomir, Mohamed, Bilal H., Keusgen, Wilhelm, Mellein, Heinz, Yassin, Eslam, Schroeder, Bernd
The reconfigurable intelligent surface (RIS) technology is a potential solution to enhance network capacity and coverage without significant investment into additional infrastructure in 6G networks. This work highlights the interest of the mobile com
Externí odkaz:
http://arxiv.org/abs/2406.19868
Autor:
Agostini, Patrick, Chamberland, Jean-Francois, Clazzer, Federico, Dommel, Johannes, Liva, Gianluigi, Munari, Andrea, Narayanan, Krishna, Polyanskiy, Yury, Stanczak, Slawomir, Utkovski, Zoran
This report summarizes some considerations on possible evolutions of grant-free random access in the next generation of the 3GPP wireless cellular standard. The analysis is carried out by mapping the problem to the recently-introduced unsourced multi
Externí odkaz:
http://arxiv.org/abs/2405.03348
Autor:
Miretti, Lorenzo, Stańczak, Sławomir
It is generally believed that downlink cell-free networks perform best under centralized implementations where the local channel state information (CSI) acquired by the access-points (AP) is forwarded to one or more central processing units (CPU) for
Externí odkaz:
http://arxiv.org/abs/2404.12786