Zobrazeno 1 - 10
of 22 602
pro vyhledávání: '"R, Michael"'
We study jamming of an OFDM-modulated signal which employs forward error correction coding. We extend this to leverage reinforcement learning with a contextual bandit to jam a 5G-based system implementing some aspects of the 5G protocol. This model i
Externí odkaz:
http://arxiv.org/abs/2409.11191
Despite significant algorithmic advances in vision-based positioning, a comprehensive probabilistic framework to study its performance has remained unexplored. The main objective of this paper is to develop such a framework using ideas from stochasti
Externí odkaz:
http://arxiv.org/abs/2409.09525
Autor:
Preston, Janet, Erkal, Denis, Collins, Michelle L. M., Rich, R. Michael, Ibata, Rodrigo, Delorme, Maxime
We present results of our dynamical stream modelling for the North West Stream in the outer halo of the Andromeda galaxy (M31). Comprising two main segments, the North West Stream was thought to be a single structured arching around M31. However, rec
Externí odkaz:
http://arxiv.org/abs/2409.07419
We present a kinematic and spectroscopic analysis of 40 red giant branch stars, in 9 fields, exquisitely delineating the lower segment of the North West Stream (NW-K2), which extends for $\sim$80 kpc from the centre of the Andromeda galaxy. We measur
Externí odkaz:
http://arxiv.org/abs/2409.07410
Wireless positioning in Non-Line-of-Sight (NLOS) scenarios is highly challenging due to multipath, which leads to deterioration in the positioning estimate. This study reexamines electromagnetic field principles and applies them to wireless positioni
Externí odkaz:
http://arxiv.org/abs/2409.02832
The paper proposes a new architecture for Distributed MIMO (D-MIMO) in which the base station (BS) jointly transmits with wireless mobile nodes to serve users (UEs) within a cell for 6G communication systems. The novelty of the architecture lies in t
Externí odkaz:
http://arxiv.org/abs/2409.02055
In this paper, we use the Fisher information matrix (FIM) to analyze the interaction between low-earth orbit (LEO) satellites and $5$G base stations in providing $9$D receiver localization and correcting LEO ephemeris. First, we give a channel model
Externí odkaz:
http://arxiv.org/abs/2408.16728
In this paper, we derive the fundamental limits of low earth orbit (LEO) enabled localization by analyzing the available information in signals from multiple LEOs during different transmission time slots received on a multiple antennas and evaluate t
Externí odkaz:
http://arxiv.org/abs/2408.16710
Autor:
Rodriguez, Antonio C., El-Badry, Kareem, Suleimanov, Valery, Pala, Anna F., Kulkarni, Shrinivas R., Gaensicke, Boris, Mori, Kaya, Rich, R. Michael, Sarkar, Arnab, Bao, Tong, de Oliveira, Raimundo Lopes, Ramsay, Gavin, Szkody, Paula, Graham, Matthew, Prince, Thomas A., Caiazzo, Ilaria, Vanderbosch, Zachary P., van Roestel, Jan, Das, Kaustav K., Qin, Yu-Jing, Kasliwal, Mansi M., Wold, Avery, Groom, Steven L., Reiley, Daniel, Riddle, Reed
We present volume-limited samples of cataclysmic variables (CVs) and AM CVn binaries jointly selected from SRG/eROSITA eRASS1 and \textit{Gaia} DR3 using an X-ray + optical color-color diagram (the ``X-ray Main Sequence"). This tool identifies all CV
Externí odkaz:
http://arxiv.org/abs/2408.16053
Autor:
Perera, Derek, Williams, Liliya L. R., Liesenborgs, Jori, Kelly, Patrick L., Taft, Sarah H., Li, Sung Kei, Jauzac, Mathilde, Diego, Jose M., Natarajan, Priyamvada, Steinhardt, Charles L., Faisst, Andreas L., Rich, R. Michael
We present new free-form and hybrid mass reconstructions of the galaxy cluster lens MACS J0416.1-2403 at $z=0.396$ using the lens inversion method GRALE. The reconstructions use 237 spectroscopically confirmed multiple images from Bergamini et. al. 2
Externí odkaz:
http://arxiv.org/abs/2407.15978