Understanding packet delivery performance in dense wireless sensor networks
Proceedings of the 1st international conference on Embedded networked sensor systems
Temporal properties of low power wireless links: modeling and implications on multi-hop routing
Proceedings of the 6th ACM international symposium on Mobile ad hoc networking and computing
Understanding the causes of packet delivery success and failure in dense wireless sensor networks
Proceedings of the 4th international conference on Embedded networked sensor systems
Antennas And Propagation for Body-Centric Wireless Communications
Antennas And Propagation for Body-Centric Wireless Communications
Improving Reliability in Multi-hop Body Sensor Networks
SENSORCOMM '08 Proceedings of the 2008 Second International Conference on Sensor Technologies and Applications
On the performance of Bluetooth and IEEE 802.15.4 radios in a body area network
BodyNets '08 Proceedings of the ICST 3rd international conference on Body area networks
Link layer behavior of body area networks at 2.4 GHz
Proceedings of the 15th annual international conference on Mobile computing and networking
Transmission power control in body area sensor networks for healthcare monitoring
IEEE Journal on Selected Areas in Communications - Special issue on body area networking: Technology and applications
To hop or not to hop: network architecture for body sensor networks
SECON'09 Proceedings of the 6th Annual IEEE communications society conference on Sensor, Mesh and Ad Hoc Communications and Networks
Applications, challenges, and prospective in emerging body area networking technologies
IEEE Wireless Communications
An overview of body sensor networks in enabling pervasive healthcare and assistive environments
Proceedings of the 3rd International Conference on PErvasive Technologies Related to Assistive Environments
A survey on wireless body area networks
Wireless Networks
Mobile Networks and Applications
A Comprehensive Survey of Wireless Body Area Networks
Journal of Medical Systems
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The wireless body sensor network (BSN) is used to detect and transmit physiological data such as vital signs by using radio wave communication. It offers a large saving potential for future healthcare applications because hospitalization of patients with chronic diseases can be kept at a minimum. The radio wave communication on the human body is impacted by the dielectric properties, the posture, and the movement of the body. Under these conditions a highly dynamic link-state and link quality are observed. In this paper we present a study of the link layer behavior of wireless BSNs operating at 2.45 GHz. We report on a wearable body-centric network operation in realistic environments from which we characterize the wireless channels based on a novel test framework. Our test framework uses a 200 ms time resolution for sampling of the wireless links between on-body sensor nodes. We record the received signal strength indicator and link quality indicator values as well as the packet delivery statistics in real-time. Based on recorded experiments we quantify the potential packet delivery performance and energy gain that can be obtained by using dynamic routing and adaptive transmission power schemes, respectively. Subsequently we formulate a set of requirements for the next revision of our prototype wireless BSN developed at Aarhus University School of Engineering in Denmark.