Full-Duplex Wireless for 6G: Progress Brings New Opportunities and Challenges

Besma Smida, Ashutosh Sabharwal, Gabor Fodor, George C. Alexandropoulos, Himal A. Suraweera, Chan Byoung Chae

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)2729-2750
Number of pages22
JournalIEEE Journal on Selected Areas in Communications
Issue number9
StatePublished - Sep 1 2023


  • Cross-link interference
  • full-duplex
  • integrated access and backhaul
  • integrated sensing and communication
  • localization
  • multiple-input multiple-output systems
  • non-terrestrial networks
  • reconfigurable intelligent surface
  • self-interference cancellation

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering


Dive into the research topics of 'Full-Duplex Wireless for 6G: Progress Brings New Opportunities and Challenges'. Together they form a unique fingerprint.

Cite this