RT Journal Article T1 Accurate Human Tissue Characterization for Energy-Efficient Wireless On-Body Communications A1 Vallejo, Mónica A1 Recas Piorno, Joaquín A1 García del Valle, Pablo A1 Ayala Rodrigo, José Luis AB 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. PB MDPI SN 1424-8220 YR 2013 FD 2013-06-10 LK https://hdl.handle.net/20.500.14352/34386 UL https://hdl.handle.net/20.500.14352/34386 LA eng NO Ministerio de Economía y Competitividad (MINECO) DS Docta Complutense RD 21 abr 2025