Zobrazeno 1 - 10
of 3 245
pro vyhledávání: '"Wing Kin To"'
In frequency division duplex (FDD) massive MIMO systems, a major challenge lies in acquiring the downlink channel state information}\ (CSI) at the base station (BS) from limited feedback sent by the user equipment (UE). To tackle this fundamental tas
Externí odkaz:
http://arxiv.org/abs/2411.16043
This work proposes a variational inference (VI) framework for hyperspectral unmixing in the presence of endmember variability (HU-EV). An EV-accounted noisy linear mixture model (LMM) is considered, and the presence of outliers is also incorporated i
Externí odkaz:
http://arxiv.org/abs/2407.14899
As communication systems advance towards the future 6G era, the incorporation of large-scale antenna arrays in base stations (BSs) presents challenges such as increased hardware costs and energy consumption. To address these issues, the use of one-bi
Externí odkaz:
http://arxiv.org/abs/2407.11079
In the first part of this study, a convex-constrained penalized formulation was studied for a class of constant modulus (CM) problems. In particular, the error bound techniques were shown to play a vital role in providing exact penalization results.
Externí odkaz:
http://arxiv.org/abs/2403.06513
This study develops a framework for a class of constant modulus (CM) optimization problems, which covers binary constraints, discrete phase constraints, semi-orthogonal matrix constraints, non-negative semi-orthogonal matrix constraints, and several
Externí odkaz:
http://arxiv.org/abs/2403.06506
Given a hyperspectral image, the problem of hyperspectral unmixing (HU) is to identify the endmembers (or materials) and the abundance (or endmembers' contributions on pixels) that underlie the image. HU can be seen as a matrix factorization problem
Externí odkaz:
http://arxiv.org/abs/2401.14592
Transmitting data using the phases on reconfigurable intelligent surfaces (RIS) is a promising solution for future energy-efficient communication systems. Recent work showed that a virtual phased massive multiuser multiple-input-multiple-out (MIMO) t
Externí odkaz:
http://arxiv.org/abs/2310.16347
Autor:
Keung, Wai-Yiu, Ma, Wing-Kin
This paper considers the context of multiuser massive MIMO downlink precoding with low-resolution digital-to-analog converters (DACs) at the transmitter. This subject is motivated by the consideration that it is expensive to employ high-resolution DA
Externí odkaz:
http://arxiv.org/abs/2310.14179
Autor:
Ramesh Rajaby, Wing-Kin Sung
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-16 (2024)
Abstract Deletions and tandem duplications (commonly called CNVs) represent the majority of structural variations in a human genome. They can be identified using short reads, but because they frequently occur in repetitive regions, existing methods f
Externí odkaz:
https://doaj.org/article/13a792885ae24f3184e46d22f7419c22
Autor:
Svenja Sydor, Ender Engin, Samantha Wittek, Peter Lemmer, Jan Best, Martin Steinmetz, Anja Figge, Andreas Jähnert, Mustafa Özcürümez, Martina Broecker-Preuss, Wing-Kin Syn, Ali Canbay, Paul Manka
Publikováno v:
Clinical Nutrition Open Science, Vol 58, Iss , Pp 370-383 (2024)
Summary: Background & Aims: Religious fasting during Ramadan involves a time-restricted intake of food and drink, which can be compared to intermittent fasting. In this study, we aimed to investigate the impact of a one-month fast on liver damage, gl
Externí odkaz:
https://doaj.org/article/fe272b35f80f4eefba3824386b148adb