Secure transmission of commands using multicarrier structure for wireless implantable medical devices

Wireless communication has growing interests in health care domain, especially in implantable medical devices (IMD). Because of the open nature of the wireless signals, providing a secure communication between IMD and physician device becomes a significant concern. In this study, we propose a security mechanism against eavesdroppers to protect the data sent by a physician. The importance of keeping these data in safe stems from the fact that the data consists of commands and remote control information which are vital for the patients. In the proposed method, secure transmission of command data by embedding and hiding data in multicarrier structure and less complex reception for IMD with customized frequency dehopping technique is employed. As indicated in performance evaluations, even with super computers, an eavesdropper can not decode the protected data in tremendous amount of time (years).