IEEE Journal on Emerging and Selected Topics in Circuits and Systems · 2012 · 31 citations · 17 references
EngineeringBiomedical EngineeringElectrical EngineeringComputer NetworksSensorsWireless CommunicationsChannel EstimationSensor NetworksWireless Channel ModelingWireless ConnectivityWireless NetworksWireless Sensor NetworksBody Area NetworksBody Sensor NetworksPath LossPath Loss ModelingPeriodicityWireless Communication ChannelsWireless Communication SystemsWireless Networking
This paper models the periodic characteristics of body sensor network (BSN) wireless channels measured using custom hardware in the 900-MHz and 2.4-GHz bands. The hardware logs received signal strength indication (RSSI) values of both bands simultaneously at a sample rate of 1.3 kS/s. Results from a measurement campaign of BSNs are shown and distilled to reveal characteristics of BSN channels that can be exploited for reducing the power of wireless communication. A new channel model is introduced to add periodicity to existing 802.15.6 WBAN path loss equations. New parameters, activity factor and location factor, are introduced to estimate the model parameters. Finally, a strategy for exploiting the periodic characteristics of the BSN channel is presented as an example, along with the power savings from using this strategy.
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Jose L. Bohorquez, Anantha P. Chandrakasan, Joel L. Dawson · IEEE Journal of Solid-State Circuits · 2009 · 244 citations · Full text
Engineering, Biomedical Engineering, Electrical Engineering +17