Zobrazeno 1 - 10
of 521
pro vyhledávání: '"multiple input single output (MISO)"'
Publikováno v:
IEEE Access, Vol 12, Pp 76065-76073 (2024)
In this paper, re-configurable intelligent reflecting surfaces (IRS) based on cell-free communications to serve multi-user (MU) are considered. This is to enhance the transmission for the next generation of wireless communications. This technique has
Externí odkaz:
https://doaj.org/article/9ba0e1b9b5a741dabb3abb02aa3c3bf5
Publikováno v:
IEEE Access, Vol 12, Pp 65241-65253 (2024)
In this study, we explore a hybrid non-orthogonal multiple access and time division multiple access (NOMA-TDMA) approach designed to maximize sum throughput in a wireless powered Internet of Things (IoT) network (WPIN). Hybrid access points send ener
Externí odkaz:
https://doaj.org/article/f6b06067677948febb986badf9a6c920
Publikováno v:
Sensors, Vol 24, Iss 19, p 6169 (2024)
Intelligent Reflecting Surfaces (IRS) and Multiple-Input Single-Output (MISO) technologies are essential in the fifth generation (5G) networks and beyond. IRS optimizes the signal propagation and the coverage and is a viable approach to address the i
Externí odkaz:
https://doaj.org/article/615ba68c2dd44690a9b3f3b4f02b8cb8
Publikováno v:
Photonics, Vol 11, Iss 6, p 537 (2024)
Visible light communication (VLC) and visible light positioning (VLP) systems are usually designed separately to prevent mutual interference, while terminal mobility often introduces challenges that can degrade their performance. In this paper, we pr
Externí odkaz:
https://doaj.org/article/09c1f802e15d4f7f8c94751271af1113
Publikováno v:
Signals, Vol 4, Iss 1, Pp 208-234 (2023)
Next-generation wireless communications aim to utilize mmWave/subTHz bands. In this regime, signal propagation is vulnerable to interferences and path losses. To overcome this issue, a novel technology has been introduced, which is called reconfigura
Externí odkaz:
https://doaj.org/article/47f47fce256441aeaf86dc6fd6204e42
Publikováno v:
IEEE Photonics Journal, Vol 15, Iss 6, Pp 1-13 (2023)
The unmanned aerial vehicle (UAV)-aided free-space optical/radio frequency (FSO/RF) technique has recently attracted significant attention, which offers new possibilities thanks to its dynamic deployment capability. However, many researchers have not
Externí odkaz:
https://doaj.org/article/06517222e0a943998a51431522d5acd8
Publikováno v:
IEEE Access, Vol 11, Pp 71250-71259 (2023)
Non-Orthogonal Multiple Access (NOMA) has emerged as a promising strategy for increasing spectral efficiency in wireless multiuser communications. The performance of NOMA highly depends on the users’ channel conditions, being enhanced when these ar
Externí odkaz:
https://doaj.org/article/e925efd0a503465aa939057e95befc9d
Publikováno v:
IEEE Access, Vol 11, Pp 20088-20094 (2023)
We investigate the performance of satellite communication systems acquiring the space shift keying (SSK) modulation technique over shadowed-rician (SR) land mobile satellite (LMS) link. Specifically, we discuss the analytical performance of the consi
Externí odkaz:
https://doaj.org/article/d0c5a2470ac04389837e6ce9851309b5
Akademický článek
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Publikováno v:
IEEE Access, Vol 10, Pp 91119-91126 (2022)
We determine the channel state information (CSI) of a multiple-input single-output (MISO) Rayleigh channel without prior communications between the transmitting antennas and the receiver. Our approach solely relies on an impedance modulation at the r
Externí odkaz:
https://doaj.org/article/ce0ab94caab643b099c5e751f7ecf432