TY - JOUR
T1 - Full-Duplex Wireless for 6G
T2 - Progress Brings New Opportunities and Challenges
AU - Smida, Besma
AU - Sabharwal, Ashutosh
AU - Fodor, Gabor
AU - Alexandropoulos, George C.
AU - Suraweera, Himal A.
AU - Chae, Chan Byoung
N1 - Funding Information:
The work of Besma Smida was supported in part by NSF CAREER under Grant 1620902. The work of Ashutosh Sabharwal was supported in part by NSF under Grant 2215082, Grant 1956297, and Grant 2148313. The work of Gabor Fodor was supported in part by the Swedish Foundation for Strategic Research project SAICOM under Grant FUS21-0004. The work of Chan-Byoung Chae was supported in part by NRF and IITP funded by the Korean Government under Grant NRF-2020R1A2C4001941 and Grant 2022-0-00704.
Publisher Copyright:
© 1983-2012 IEEE.
PY - 2023/9/1
Y1 - 2023/9/1
N2 - The use of in-band full-duplex (FD) enables nodes to simultaneously transmit and receive on the same frequency band, which challenges the traditional assumption in wireless network design. The full-duplex capability enhances spectral efficiency and decreases latency, which are two key drivers pushing the performance expectations of next-generation mobile networks. In less than ten years, in-band FD has advanced from being demonstrated in research labs to being implemented in standards, presenting new opportunities to utilize its foundational concepts. Some of the most significant opportunities include using FD to enable wireless networks to sense the physical environment, integrate sensing and communication applications, develop integrated access and backhaul solutions, and work with smart signal propagation environments powered by reconfigurable intelligent surfaces. However, these new opportunities also come with new challenges for large-scale commercial deployment of FD technology, such as managing self-interference, combating cross-link interference in multi-cell networks, and coexistence of dynamic time division duplex, subband FD and FD networks.
AB - The use of in-band full-duplex (FD) enables nodes to simultaneously transmit and receive on the same frequency band, which challenges the traditional assumption in wireless network design. The full-duplex capability enhances spectral efficiency and decreases latency, which are two key drivers pushing the performance expectations of next-generation mobile networks. In less than ten years, in-band FD has advanced from being demonstrated in research labs to being implemented in standards, presenting new opportunities to utilize its foundational concepts. Some of the most significant opportunities include using FD to enable wireless networks to sense the physical environment, integrate sensing and communication applications, develop integrated access and backhaul solutions, and work with smart signal propagation environments powered by reconfigurable intelligent surfaces. However, these new opportunities also come with new challenges for large-scale commercial deployment of FD technology, such as managing self-interference, combating cross-link interference in multi-cell networks, and coexistence of dynamic time division duplex, subband FD and FD networks.
KW - Cross-link interference
KW - full-duplex
KW - integrated access and backhaul
KW - integrated sensing and communication
KW - localization
KW - multiple-input multiple-output systems
KW - non-terrestrial networks
KW - reconfigurable intelligent surface
KW - self-interference cancellation
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U2 - 10.1109/JSAC.2023.3287612
DO - 10.1109/JSAC.2023.3287612
M3 - Article
AN - SCOPUS:85162894885
VL - 41
SP - 2729
EP - 2750
JO - IEEE Journal on Selected Areas in Communications
JF - IEEE Journal on Selected Areas in Communications
SN - 0733-8716
IS - 9
ER -