A Comparative Study of Energy Efficient Collision Avoidance Protocols for WBAN

Different collision avoidance and energy-efficient MAC protocols can be used in wireless communication to prevent contention and to improve the lifetime of the network, but none of them are recognized as standard protocols to meet the requirements of WBAN. So there is a need for well defined MAC protocols to optimize the energy efficiency and collision during the channel access mechanism. Hence, this paper presents a comparative analysis of energy efficient and collision avoidance Medium Access Control (MAC) protocols to overcome the challenges faced by the Internet-of-Things (IoT)-based Wireless-Body-Area-Networks (WBAN). In this study, we have provided an inclusive study of MAC protocols based on IEEE 802.15.6 and IEEE 802.15.4 standard, issues in MAC protocols, and their proposed solutions. Finally, in order to ensure smooth connectivity in WBAN-based systems, we have provided the future research directions.