Zobrazeno 1 - 10
of 945
pro vyhledávání: '"alternating optimization"'
Autor:
Ning Li, Pingzhi Fan
Publikováno v:
EURASIP Journal on Wireless Communications and Networking, Vol 2024, Iss 1, Pp 1-16 (2024)
Abstract This paper investigates distributed cell-free massive multiple-input multiple-output with non-ideal user equipment hardware under spatially correlated channels. By employing the use-and-then-forget technique, a lower capacity bound is derive
Externí odkaz:
https://doaj.org/article/595cabeff6c0422dbbc9dbc2e43b2d86
Publikováno v:
IEEE Access, Vol 12, Pp 150189-150203 (2024)
The massive number of APs is often perceived as a complexity bottleneck for the scalable deployment of Cell-free (CF) systems. In this context, we propose various system-level results and valuable insights on some of the multidimensional design chall
Externí odkaz:
https://doaj.org/article/405193b7edba4fd397e6d1e375efd2b8
Publikováno v:
IEEE Access, Vol 12, Pp 137970-137987 (2024)
We propose a new methodology for the estimation of the rate distortion function (RDF), considering both continuous and discrete reconstruction spaces. The approach is input-space agnostic and does not require prior knowledge of the source distributio
Externí odkaz:
https://doaj.org/article/20bdeb6876cc403c94b94a9253688ddd
Publikováno v:
IEEE Access, Vol 12, Pp 96583-96591 (2024)
This paper addresses the secure communication problem in a distributed active-passive reconfigurable intelligent surface (RIS) assisted multiple-input single-output (MISO) scenario with a single-antenna malicious eavesdropper. The objective is to max
Externí odkaz:
https://doaj.org/article/96e09685edfa4f86b53a9d2b3d26c95e
Autor:
Ioannis Krikidis
Publikováno v:
IEEE Transactions on Quantum Engineering, Vol 5, Pp 1-9 (2024)
In this article, we study the problem of digital pre/postcoding design in multiple-input multiple-output (MIMO) systems with 1-b resolution per complex dimension. The optimal solution that maximizes the received signal-to-noise ratio relies on an NP-
Externí odkaz:
https://doaj.org/article/4cf4edffd49945f287145365f241cd2d
Publikováno v:
IEEE Access, Vol 12, Pp 34632-34643 (2024)
An algorithm for blind source separation (BSS) of the second heart sound (S2) into aortic and pulmonary components is proposed. It recovers aortic (A2) and pulmonary (P2) waveforms, as well as their relative delays, by solving an alternating optimiza
Externí odkaz:
https://doaj.org/article/481a8e3a961541bcaa6bd74a82b73ec8
Autor:
Jung-Chieh Chen, Chiu-Hsiang Hsu
Publikováno v:
IEEE Open Journal of the Communications Society, Vol 5, Pp 1387-1398 (2024)
This study addresses a massive multiuser multiple-input single-output downlink system with a base station equipped with dynamic metasurface antennas (DMAs) serving single-antenna users. Our goal is to jointly optimize the transmit precoder and config
Externí odkaz:
https://doaj.org/article/df3b0d5be65b4d31abd282eefcb31353
Publikováno v:
IEEE Open Journal of the Communications Society, Vol 5, Pp 1204-1221 (2024)
Mobile Edge Computing (MEC) has a widely established merit of bringing powerful computing servers to geographically closer locations to computationally limited devices; hence, reducing the task offloading latency from these devices to the servers. Ho
Externí odkaz:
https://doaj.org/article/dead642cb7c440cb88891941c1189089
Autor:
Petros Nyfantis, Pablo Ruiz Mataran, Hector Nistazakis, George Tombras, Aggelos K. Katsaggelos
Publikováno v:
Journal of Imaging, Vol 10, Iss 10, p 249 (2024)
Phase Retrieval is defined as the recovery of a signal when only the intensity of its Fourier Transform is known. It is a non-linear and non-convex optimization problem with a multitude of applications including X-ray crystallography, microscopy and
Externí odkaz:
https://doaj.org/article/8c06c324d1874d099e5529f94bff83ff
Autor:
Varadala Sridhar, Hao Xu
Publikováno v:
e-Prime: Advances in Electrical Engineering, Electronics and Energy, Vol 8, Iss , Pp 100619- (2024)
Satellite communication is crucial for 6 G industrial wireless networks due to its comprehensive communication services, but traditional methods face challenges such as high latency, limited bandwidth, high cost, and integration with terrestrial netw
Externí odkaz:
https://doaj.org/article/c84d35fe53f44c4aa29f12a11333f740