Characterizing in-band full-duplex in broadcast communications: From field trials to a loopback channel model

• DOI: 10.1016/j.measurement.2024.114792
• Publication Date: 2024-04-28T00:32:44Z
• Authors: Iñigo Bilbao; Eneko Iradier; Marta Fernandez; Jon Montalban; Pablo Angueira; Zhihong Hunter Hong; Yiyan Wu
• Keywords: Duplex (building)

In-band full duplex (IBFD) communications are a potential solution to spectrum scarcity. IBFD offer greater spectral efficiency than traditional half-duplex by transmitting and receiving on the same frequency channel. However, operation requires overcoming challenge of eliminating self-interference coupled from transmit antenna receive subsystem. Knowledge characteristics loopback propagation channel makes it easier cancel out self-interference. Nevertheless, complex field trials required adequately characterize channels, which is still lacking in recent literature. This paper proposes measurement campaign real ongoing broadcast transmission center main channels. The work set channels based an empirical analysis most relevant parameters model, such as Doppler spectrum, delay spread, K-factor.