Wireless Body Area Networks with compressed sensing theory

Abstract

With the rapid advancements of Wireless Sensor Networks (WSNs), wireless communication, and electronic technologies the area of wireless networks has grown significantly supporting a range of applications of Wireless Body Area Networks (WBANs) including Electronic Health (EH) and Mobile health (MH). Wireless Body Area Networks (WBANs) consist of small intelligent wireless sensors attached on or implanted in the body. These wireless sensors are responsible for collecting, processing, and transmitting vital information such as: blood pressure, heart rate, respiration rate, electrocardiographic (ECG), electroencephalography (EEG), oxygenation signals, respiratory rate, and temperature to provide continuous health monitoring with real-time feedback to the users and medical centers. In order to fully exploit the benefits of WBANs for important applications such as EH, MH, and Ambulatory Health Monitoring (AHM), the power consumption must be minimized. Each Wireless Node (WN) in WBANs must be designed to manage its local power supply in order to maximize total network lifetime. With this in mind, we want to employ Compressed Sensing (CS) to WBANs theory as a new sampling procedure to reduce load of sampling rate and minimize power consumption. Our simulation results show that sampling rate can be reduced to 30% of Nyquist Rate (NR) and power consumption to 40% in ECG signals without sacrificing reliability and availability by employing the CS theory to WBANs. This paper presents a novel sampling approach to WBANs using compressive sensing methods to WBANs.