Disruption-Tolerant Wireless Sensor Networking for Biomedical Monitoring in Outdoor Conditions

Off-the-shelf wireless sensing devices open up interesting perspectives for biomedical monitoring. Yet because of their limited processing and transmission capacities most applica- tions considered to date imply either indoor real-time data streaming, or ambulatory data recording. In this paper we investigate the possibility of using disruption-tolerant wire- less sensors to monitor the biomedical parameters of ath- letes during outdoor sports events. We focus on a scenario we believe to be a most challenging one: the ECG monitor- ing of runners during a marathon race, using off-the shelf sensing devices and a limited number of base stations de- ployed along the marathon route. Preliminary experiments conducted during an intra-campus sports event show that such a scenario is indeed viable, although special attention must be paid to supporting episodic, low-rate transmissions between sensors carried by runners and road-side base stations.