Secure and Energy Efficient Transmission of ECG Signals in Wearable Sensor Networks – A Survey

Security and energy efficient transmission are two important issues in wearable sensors. Health conditions of VIPs, soldiers etc. are of very important and high security has to be maintained. The transmission of the ECG signal using sensors to distant monitoring centers increases the power consumption due to the Bluetooth transceivers. Wearable sensors uses electrodes attached to the body of patients to collect ECG data and it is processed and transmitted to monitoring center or hospitals at a distant locations using WAN or CDMA. This paper presents a study of different secure and energy efficient ECG signal transmission methods. Index Terms – Electrocardiogram (ECG), Wearable Sensors, Compressed Sensing (CS), Digital Signature.