Fault Tolerant Analysis using Serial-Triple Modular Redundancy (S-TMR) on TBCD Ultra Low Energy Communication Protocol for Biosensors

Abstract

Tiny implantable biosensor nodes in the human body suffer from a lack of energy and low lifetime in Implantable Wireless Body Sensor Networks (IWBSN). They must remain and function well in the body as a source of comfort for a long time. The major challenge is related to the ultra-low capacity of the tiny battery inside the biosensors for wireless transmission. In this paper, a serial triple modular redundancy (S-TMR) is proposed to enhance the reliability of the wireless data transmission based on TBCD protocol. A thorough fault injection simulation is performed to demonstrate up to 11 times gain in fault coverage when using S-TMR technique.