A Study on the Wireless Body Area Network MAC Protocol Using Dynamic Superframe for e-Health IoT. Issue 1 (June 2021) - Su, Haoru
Abstract: One of the most remarkable applications of the Internet of Things is health monitoring. Wireless body area networks (WBANs) consist of several body sensors implanted in or place on a human body and a coordinator. One of the essential issues of WBANs is the design of Medium Access Control (MAC) protocol to improve system efficiency. In this paper, we modify the IEEE 802.15.4 standard MAC superframe structure and propose an energy-efficient MAC protocol for WBANs in the e-Health Internet of Things (IoT) systems. In this scheme, the time slots are divided into mini-slots. The lengths of the contention access period and the contention free period are both variable. By using this mechanism, the utility of time slots can be considerably increased.