Opportunities and Challenges in High-Rate Wireless Sensor Networking
LCN '04 Proceedings of the 29th Annual IEEE International Conference on Local Computer Networks
System architecture of a wireless body area sensor network for ubiquitous health monitoring
Journal of Mobile Multimedia
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
BodyANT: miniature wireless sensors for naturalistic monitoring of daily activity
BodyNets '09 Proceedings of the Fourth International Conference on Body Area Networks
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
IEEE Transactions on Information Technology in Biomedicine - Special section on body sensor networks
A multifrequency MAC specially designed for wireless sensor network applications
ACM Transactions on Embedded Computing Systems (TECS)
Passive discovery of IEEE 802.15.4-based body sensor networks
Ad Hoc Networks
Computers in Entertainment (CIE) - Theoretical and Practical Computer Applications in Entertainment
Adaptive and Radio-Agnostic QoS for Body Sensor Networks
ACM Transactions on Embedded Computing Systems (TECS)
Node mobility support in body sensor networks
Proceedings of the Fifth International Conference on Body Area Networks
A robust protocol stack for multi-hop wireless body area networks with transmit power adaptation
Proceedings of the Fifth International Conference on Body Area Networks
A Comprehensive Survey of Wireless Body Area Networks
Journal of Medical Systems
eHealthGuard: a personal mobile health monitoring platform
Proceedings of the 6th International Conference on Body Area Networks
A three-tier architecture for user-centric ubiquitous networked sensing
ISRN Communications and Networking
Review: Wireless sensor networks for rehabilitation applications: Challenges and opportunities
Journal of Network and Computer Applications
A lightweight distributed scheme for mitigating inter-user interference in body sensor networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
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The choice of network architecture for body sensor networks is an important one because it significantly affects overall system design and performance. Current approaches use propagation models or specific medium access control protocols to study architectural choices. The issue with the first approach is that the models do not capture the effects of interference and fading. Further, the question of architecture can be raised without imposing a specific MAC protocol. In this paper, we first evaluate the star and multihop network topologies against design goals, such as power and delay efficiency. We then design experiments to investigate the behavior of electromagnetic propagation at 2.4 GHz through and around the human body. Along the way, we develop a novel visualization tool to aid in summarizing information across all pairs of nodes, thus providing a way to discern patterns in large data sets visually. Our results suggest that while a star architecture with nodes operating at low power levels might suffice in a cluttered indoor environment, nodes in an outdoor setting will have to operate at higher power levels or change to a multihop architecture to support acceptable packet delivery ratios. Through simple analysis, the potential increase in packet delivery ratio by switching to a multihop architecture is evaluated.