Title: An energy-efficient low-SAR pathfinding mechanism for WBAN

Authors: Tin-Yu Wu; Yu-Wei Wu

Addresses: Department of Computer Science and Information Engineering, National Ilan University, Taiwan ' Department of Computer Science and Information Engineering, National Ilan University, Taiwan

Abstract: In wireless body area network (WBAN), sensors nodes are placed on, in or around the human body to gather bioinformation for medical purposes. However, energy efficiency remains a crucial problem for WBANs. Energy consumption determines the life time of a network and any node failure could cause network failure. In the medical context, network failure may significantly degrade system reliability and result in considerable packet loss that could be life-threatening. In this study, Dijkstra algorithm is adopted for pathfinding. According to each node's remainder power and weighted SAR value, our proposed mechanism can find the path with the lowest SAR to reduce the effects of electromagnetic radiation on the human body.

Keywords: wireless sensor network; WSN; wireless body area network; WBAN; specific absorption rate; SAR; Dijkstra's algorithm.

DOI: 10.1504/IJAHUC.2020.108574

International Journal of Ad Hoc and Ubiquitous Computing, 2020 Vol.34 No.4, pp.199 - 207

Received: 14 Aug 2019
Accepted: 20 Sep 2019
Published online: 20 Jul 2020 *

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