Zobrazeno 1 - 10
of 467
pro vyhledávání: '"Tufvesson Fredrik"'
Aiming for the sixth generation (6G) wireless communications, distributed massive multiple-input multiple-output (MIMO) systems hold significant potential for spatial multiplexing. In order to evaluate the ability of a distributed massive MIMO system
Externí odkaz:
http://arxiv.org/abs/2411.18307
The handover (HO) procedure is one of the most critical functions in a cellular network driven by measurements of the user channel of the serving and neighboring cells. The success rate of the entire HO procedure is significantly affected by the prep
Externí odkaz:
http://arxiv.org/abs/2411.09720
User grouping based on geographic location in fifth generation (5G) New Radio (NR) systems has several applications that can significantly improve network performance, user experience, and service delivery. We demonstrate how Sounding Reference Signa
Externí odkaz:
http://arxiv.org/abs/2410.19854
Autor:
Willhammar, Sara, Iimori, Hiroki, Vieira, Joao, Sundström, Lars, Tufvesson, Fredrik, Larsson, Erik G.
In what ways could cellular massive MIMO be improved? This technology has already been shown to bring huge performance gains. However, coverage holes and difficulties to transmit multiple streams to multi-antenna users because of insufficient channel
Externí odkaz:
http://arxiv.org/abs/2406.00142
The integration of high-precision cellular localization and machine learning (ML) is considered a cornerstone technique in future cellular navigation systems, offering unparalleled accuracy and functionality. This study focuses on localization based
Externí odkaz:
http://arxiv.org/abs/2405.09715
Autor:
Marinek, Alexander, Cai, Xuesong, De Strycker, Lieven, Tufvesson, Fredrik, Van der Perre, Liesbet
Millimeter-wave (mmWave) technology holds the potential to revolutionize head-mounted displays (HMDs) by enabling high-speed wireless communication with nearby processing nodes, where complex video rendering can take place. However, the sparse angula
Externí odkaz:
http://arxiv.org/abs/2404.19297
Autor:
Deutschmann, Benjamin J. B., Nelson, Christian, Henriksson, Mikael, Marti, Gian, Kosasih, Alva, Tervo, Nuutti, Leitinger, Erik, Tufvesson, Fredrik
Distributed multiple-input multiple-output (D-MIMO) is a promising technology for simultaneous communication and positioning. However, phase synchronization between multiple access points in D-MIMO is challenging and methods that function without the
Externí odkaz:
http://arxiv.org/abs/2404.15936
Autor:
Sandra, Michiel, Nelson, Christian, Li, Xuhong, Cai, Xuesong, Tufvesson, Fredrik, Johansson, Anders J
Channel sounding is a vital step in understanding wireless channels for the design and deployment of wireless communication systems. In this paper, we present the design and implementation of a coherent distributed massive MIMO channel sounder operat
Externí odkaz:
http://arxiv.org/abs/2403.11856
In this paper, we present a multipath-based simultaneous localization and mapping (SLAM) algorithm that continuously adapts mulitiple map feature (MF) models describing specularly reflected multipath components (MPCs) from flat surfaces and point-sca
Externí odkaz:
http://arxiv.org/abs/2403.10095
mmWave communication has come up as the unexplored spectrum for 5G services. With new standards for 5G NR positioning, more off-the-shelf platforms and algorithms are needed to perform indoor positioning. An object can be accurately positioned in a r
Externí odkaz:
http://arxiv.org/abs/2403.09575