Performance Analysis of Transceiver‐Heterogeneous Magnetic Induction Emergency Through‐the‐Earth Communication

Abstract Underground emergency rescue operations require that communication signals can propagate over longer distances and directly penetrate thick earth strata. Additionally, the transceiver terminals need to have relatively flexible and convenient deployment capabilities to adapt to the complex mining environment. Magnetic induction (MI) communication, which features stable transmission channels and imposes no stringent requirements on antenna size, is suitable for achieving reliable through‐the‐earth (TTE) communication in underground mine environments. This paper proposes a heterogeneous transceiver‐based MI communication scheme specifically designed for underground emergency rescue scenarios. Based on the characteristic of weak coupling between transmit and receive coils in MI‐TTE communication, an equivalent circuit model corresponding to the transceiver loop is established, thereby constructing a quantifiable analysis model for the transceiver‐heterogeneous MI‐TTE communication performance using mathematical methods. Through parametric analysis, we systematically investigate how transceiver coil geometry affects channel bandwidth and path loss. Considering receiver noise characteristics, we further compare channel capacity and maximum achievable modulation orders under varying coil configurations and communication distances. The results indicate that the communication bandwidth is primarily limited by the turns of receiving coil. Reducing receiving coil turns yields significant capacity improvements only for short‐distance communications, whereas increasing the receiving coil radius can optimize channel capacity globally.