RT Journal Article T1 Proactive and Reactive Transmission Power Control for Energy-Efficient On-Body Communications A1 Vallejo, Mónica A1 Recas Piorno, Joaquín A1 Ayala Rodrigo, José Luis AB In wireless body sensor network (WBSNs), the human body has an important effect on the performance of the communication due to the temporal variations caused and the attenuation and fluctuation of the path loss. This fact suggests that the transmission power must adapt to the current state of the link in a way that it ensures a balance between energy consumption and packet loss. In this paper, we validate our two transmission power level policies (reactive and predictive approaches) using the Castalia simulator. The integration of our experimental measurements in the simulator allows us to easily evaluate complex scenarios, avoiding the difficulties associated with a practical realization. Our results show that both schemes perform satisfactorily, providing overall energy savings of 24% and 22% for a case of study, as compared to the maximum transmission power mode. PB MDPI SN 1424-8220 YR 2015 FD 2015-03 LK https://hdl.handle.net/20.500.14352/24060 UL https://hdl.handle.net/20.500.14352/24060 LA spa NO Ministerio de Economía y Competitividad (MINECO) NO COLCIENCIAS (Departamento Administrativo de Ciencia, Tecnología e Innovación de Colombia) DS Docta Complutense RD 20 mar 2026