A Body Sensor Network Platform with Two-Level Communications

Wireless sensor network (WSN) technologies have been extended to the bio-medical area, and it is called body sensor networks (BSN). BSN systems sense and transmit the vital signs of human, such as electrocardiogram (ECG) and electromyogram (EMG), in unobtrusive and efficient way. Those vital signs are critical to human's life and behavior, so the data should be reliable and transmitted in real-time. In this paper, we propose a BSN platform that is using two-level communications (TLC) to increase the reliability of the system. Also, we develop a hardware and software platform to support the TLC and increase the reliability and energy efficiency.

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