A multi-coil Magneto-Inductive transceiver for low-cost wireless sensor networks

A short-range low-cost Magneto-Inductive (MI) communication system is presented for wireless sensor network applications. The advantages of MI communications include the capability of communication in all conditions such as in air, underwater, and through solids. The hardware implementation and software design incorporate three coils for multi-channel receiving and transmission. Field tests have been conducted that demonstrate promising performance in terms of communication range and robustness against coil orientation mismatch.