Extending WBAN Lifetime through Adaptive Sink and Sensor Node Positioning Strategies

Résumé

Wireless Body Area Networks (WBANs) stand out as a key technology advancing the field of healthcare monitoring. Sensor devices in this network help continuously monitor health parameters that are sent using a specific methodology to specialists for diagnosis. The most important challenge in WBANs is to save energy and maximize the lifetime of sensors as much as possible, since they are powered by replaceable or rechargeable batteries. This work investigates ways to reduce the energy consumption of WBANs and increase their lifetime. The work provides an efficient routing framework that optimizes relay node selection to reduce energy consumption. The proposed method relies on changing the position of the coordinator/sink node and the positions of all sensor nodes, in addition to the threshold energy value. Simulation results indicate that the proposed WBAN outperforms traditional WBANs in terms of energy efficiency, network stability, and data reliability.

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