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Due to the aging population and the growing need for hospitals and care for the elderly and limited hospital resources, the need for a mechanism that can handle the limited hospital resources is felt more than ever. Wireless Body Area networks are one of the technologies that monitor people's health remotely, thus avoiding unnecessary hospitalization and thus managing resource constraints. Wireless Body Area Networks (WBANs) face with energy limitations. The battery in WBANs has limited energy. However, it is not possible to replace or charge batteries in many of these networks. Therefore, it is needed to save energy and extend network life. One of the important methods that have been proposed for this purpose is sampling rate management-based methods. In this paper due to the efficiency of the sampling rate management, an efficient sampling rate method has been proposed. For this purpose to minimize unnecessary data transmission, Flat- Top Pulse Amplitude Modulated (PAM) method has been used. Then in order to make the signal from PAM suitable for data transmission, Pulse Code Modulation (PCM) method to digitize the pulses has been used. Finally, the results and outputs show that significant energy savings have been achieved. The results showed that data transmission is reduced by up to 92.7% and energy saving is achieved significantly

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