FAS Meets OFDM: Enabling Wideband 5G NR

Fluid antenna system (FAS) is an emerging technology that uses the new form of shape- and position-reconfigurable antennas to empower the physical layer for wireless communications. Prior studies on FAS were however limited to narrowband channels. Motivated by this, this paper addresses the integrat...

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Vydáno v:IEEE transactions on communications Ročník 73; číslo 11; s. 12884 - 12898
Hlavní autoři: Hong, Hanjiang, Wong, Kai-Kit, Li, Haoyang, Xu, Hao, Xiao, Han, Shin, Hyundong, Tong, Kin-Fai, Zhang, Yangyang
Médium: Journal Article
Jazyk:angličtina
Vydáno: New York IEEE 01.11.2025
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Témata:
5G mobile communication
adaptive modulation and coding (AMC)
Antennas
Broadband
Channels
fluid antenna system (FAS)
Fluids
Modulation
Narrowband
OFDM
Orthogonal Frequency Division Multiplexing
performance evaluation
Receiving antennas
Signal to noise ratio
Symbols
Wideband
Wideband communications
Wireless communications
ISSN:0090-6778, 1558-0857
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Popis
Shrnutí:Fluid antenna system (FAS) is an emerging technology that uses the new form of shape- and position-reconfigurable antennas to empower the physical layer for wireless communications. Prior studies on FAS were however limited to narrowband channels. Motivated by this, this paper addresses the integration of FAS in the fifth generation (5G) orthogonal frequency division multiplexing (OFDM) framework to address the challenges posed by wideband communications. We propose the framework of the wideband FAS-OFDM system that includes a novel port selection matrix. Then we derive the achievable rate expression and design the adaptive modulation and coding (AMC) scheme based on the rate. Extensive link-level simulation results demonstrate striking improvements of FAS in the wideband channels, underscoring the potential of FAS in future wireless communications.
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ISSN:0090-6778
1558-0857
DOI:10.1109/TCOMM.2025.3591751