The intrinsic properties of massive multiple-input multiple-output (massive MIMO) have paved the way for new innovations in exploiting the available spectrum resources. Full-duplex (FD) communication is one technique that was realized based on this foundation. This method promises to deliver double the frequency utilization for data communication. In this paper, the authors include the FD idea from massive MIMO for millimeter-wave (mmWave) communication. FD-mmWave makes for a nice amalgam.

Time division duplex (TDD) and frequency division duplex (FDD) methods are criticized for having considerable protocol overhead and “reduc[ing] the effective capacity of mmWave communication”; FD is proposed as a paramount solution. Moreover, leveraging simultaneous frequency signaling at a node would afford great flexibility and efficiency in a multiaccess scenario. The paper investigates self-inference (SI), the natural challenge to this effective method, to mitigate its influences on different aspects and scenarios. Antenna settings are required for FD implementation. In this regard, shared transmitter/receiver (Tx/Rx) use with a circulator and separate Tx/Rx are the expressed configurations. Near- and far-field conditions in antennas, and line-of-sight (LOS), are considered for the SI channel model. Normally, the most important section of such a paper would be on SI cancellation, which could provide more mature and proven advantages. The paper ends with a discussion of a multiuser scenario that explains the benefits of FD transmission and interference mitigation. The interference mitigation section describes techniques to tackle multidimensional interference due to SI and multiuser interference in the FD-mmWave base station.

This well-developed paper discusses a very good topic. It can definitely serve as a good resource; however, as a scientific paper, its level of novelty is not very considerable.