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Sensors 2013, 13(6), 7546-7569; doi:10.3390/s130607546
Article

Accurate Human Tissue Characterization for Energy-Efficient Wireless On-Body Communications

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Received: 29 March 2013; in revised form: 27 May 2013 / Accepted: 3 June 2013 / Published: 10 June 2013
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Abstract: The demand for Wireless Body Sensor Networks (WBSNs) is rapidly increasing due to the revolution in wearable systems demonstrated by the penetration of on-the-body sensors in hospitals, sports medicine and general health-care practices. In WBSN, the body acts as a communication channel for the propagation of electromagnetic (EM) waves, where losses are mainly due to absorption of power in the tissue. This paper shows the effects of the dielectric properties of biological tissues in the signal strength and, for the first time, relates these effects with the human body composition. After a careful analysis of results, this work proposes a reactive algorithm for power transmission to alleviate the effect of body movement and body type. This policy achieves up to 40.8% energy savings in a realistic scenario with no performance overhead.
Keywords: Wireless Body Sensor Networks (WBSNs); human body communication; Received Signal Strength Indication (RSSI); body type; tissues; electromagnetic Wireless Body Sensor Networks (WBSNs); human body communication; Received Signal Strength Indication (RSSI); body type; tissues; electromagnetic
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Vallejo, M.; Recas, J.; del Valle, P.G.; Ayala, J.L. Accurate Human Tissue Characterization for Energy-Efficient Wireless On-Body Communications. Sensors 2013, 13, 7546-7569.

AMA Style

Vallejo M, Recas J, del Valle PG, Ayala JL. Accurate Human Tissue Characterization for Energy-Efficient Wireless On-Body Communications. Sensors. 2013; 13(6):7546-7569.

Chicago/Turabian Style

Vallejo, Mónica; Recas, Joaquín; del Valle, Pablo G.; Ayala, José L. 2013. "Accurate Human Tissue Characterization for Energy-Efficient Wireless On-Body Communications." Sensors 13, no. 6: 7546-7569.


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