Evaluation of Body Sensor Network Platforms: A Design Space and Benchmarking Analysis
Body Sensor Networks (BSNs) consist of sensor nodes deployed on the human body for health monitoring. Each sensor node is implemented by interfacing a physiological sensor with a sensor platform consisting of components such as microcontroller, radio and memory. Diverse needs of BSN applications require customized platform development for optimizing performance. In this paper, the authors propose a two-phase framework to evaluate the performance of sensor platforms to match a BSN's computation, communication and sensing requirements: design Space Determination, wherein they investigate salient features of BSN platforms and quantify them as design coordinates through evaluation metrics such as SPSW (Samples Processed per Second per Watt) and EPC (Expected Power Consumption).