Tactical Communication Link Under Joint Jamming and Interception by Same-Frequency Simultaneous Transmit and Receive Radio

This paper explores a way in which a military full-duplex radio (MFDR) could be used at the cyber-electromagnetic battleground to impede the wireless communications of an opposing team while simultaneously intercepting the same signals. The proposed concept is based on MFDR devices' ability for same-frequency simultaneous transmission and reception (SF-STAR), which facilitates the joint jamming and sensing. The feasibility of this offensive strategy is evaluated with experiments that involve a prototype MFDR transceiver and an over-the-air tactical data link between software-defined radios. The results prove that the MFDR can prevent communications between the two nodes of the opposing team's tactical network while also improving its own performance in intercepting the transmissions, thanks to its SF-STAR capability. This means that utilizing MFDR devices could allow one to gain technical superiority over an enemy.