Antennas and Propagation for Wireless Communication Systems
Antennas and Propagation for Wireless Communication Systems
Energy-Efficient Communication Protocol for Wireless Microsensor Networks
HICSS '00 Proceedings of the 33rd Hawaii International Conference on System Sciences-Volume 8 - Volume 8
Ad-hoc On-Demand Distance Vector Routing
WMCSA '99 Proceedings of the Second IEEE Workshop on Mobile Computer Systems and Applications
Exposing resource tradeoffs in region-based communication abstractions for sensor networks
ACM SIGCOMM Computer Communication Review
BSN '06 Proceedings of the International Workshop on Wearable and Implantable Body Sensor Networks
Antennas And Propagation for Body-Centric Wireless Communications
Antennas And Propagation for Body-Centric Wireless Communications
Investigating network architectures for body sensor networks
Proceedings of the 1st ACM SIGMOBILE international workshop on Systems and networking support for healthcare and assisted living environments
The Need for Cooperation and Relaying in Short-Range High Path Loss Sensor Networks
SENSORCOMM '07 Proceedings of the 2007 International Conference on Sensor Technologies and Applications
Improving Reliability in Multi-hop Body Sensor Networks
SENSORCOMM '08 Proceedings of the 2008 Second International Conference on Sensor Technologies and Applications
A Low-delay Protocol for Multihop Wireless Body Area Networks
MOBIQUITOUS '07 Proceedings of the 2007 Fourth Annual International Conference on Mobile and Ubiquitous Systems: Networking&Services (MobiQuitous)
Propagation measurements and models for wireless communications channels
IEEE Communications Magazine
Ultra-wideband channel model for communication around the human body
IEEE Journal on Selected Areas in Communications - Part 1
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
IEEE Transactions on Information Technology in Biomedicine
Throughput efficiency in body sensor networks: A clean-slate approach
Expert Systems with Applications: An International Journal
Energy-aware Gateway Selection for Increasing the Lifetime of Wireless Body Area Sensor Networks
Journal of Medical Systems
Distributed media-aware flow scheduling in cloud computing environment
Computer Communications
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Wireless body area networks (WBANs) offer many promising new applications in the area of remote health monitoring. An important element in the development of a WBAN is the characterization of the physical layer of the network, including an estimation of the delay spread and the path loss between two nodes on the body. This paper discusses the propagation channel between two half-wavelength dipoles at 2.45 GHz, placed near a human body and presents an application for cross-layer design in order to optimize the energy consumption of different topologies. Propagation measurements are performed on real humans in a multipath environment, considering different parts of the body separately. In addition, path loss has been numerically investigated with an anatomically correct model of the human body in free space using a 3-D electromagnetic solver. Path loss parameters and time-domain channel characteristics are extracted from the measurement and simulation data. A semi-empirical path loss model is presented for an antenna height above the body of 5 mm and antenna separations from 5 cm up to 40 cm. A time-domain analysis is performed and models are presented for the mean excess delay and the delay spread. As a cross-layer application, the proposed path loss models are used to evaluate the energy efficiency of single-hop and multihop network topologies.