Internet of things (IoT) is a concept that is currently gaining a lot of popularity as a result of its potential to be incorporated into many heterogeneous systems. Because of its diversity, integrating IoT is conceivable in almost all fields, including the healthcare sector. For instance, a promising technology in the healthcare sector known as wireless body area network (WBAN) could be integrated with the IoT to enhance its productivity. However, in order to guarantee the optimization of the operation of the healthcare applications facilitated by the WBAN-enabled IoT technology, there must be enough support from all the different protocol stack layers so as to satisfy the critical quality-of-service (QoS) requirements of the WBAN systems. Consequently, the medium access control (MAC) protocol has recently been gaining lots of attention in the area of WBANs due to its ability to manage and coordinate when a shared communication channel can be accessed. For the purpose of achieving efficient MAC protocols for WBAN-enabled IoT technology, this paper investigates some key MAC protocols that could be exploited in WBANs based on their characteristics, service specifications, technical issues such as energy wastage issues, and possible technical solutions were provided to enhance energy efficiency, channel utilization, data transmission rate, and dealy rate. Also, these MAC protocols were grouped and compared based on short- and long-range communication standards. Following this, future directions and open research issues are pointed out.

物联网（IoT）是一个概念，由于它有可能被集成到许多异构系统中，因此目前正变得越来越流行。由于其多样性，几乎可以在包括医疗保健行业在内的所有领域中集成物联网。例如，可以将医疗保健领域一种有前途的技术称为无线人体局域网（WBAN）与IoT集成在一起，以提高其生产力。但是，为了确保启用WBAN的IoT技术促进医疗应用程序的运行优化，所有不同协议栈层都必须有足够的支持，才能满足关键服务质量（QoS） WBAN系统的要求。所以，媒体访问控制（MAC）协议最近在WBAN领域引起了广泛关注，因为它具有管理和协调何时可以访问共享通信信道的能力。为了实现支持WBAN的IoT技术的有效MAC协议，本文基于WBAN的特性，服务规范，能源浪费等技术问题以及可能的技术解决方案，研究了一些可以在WBAN中利用的关键MAC协议。以提高能源效率，信道利用率，数据传输率和交易率。而且，这些MAC协议是根据短距离和远程通信标准进行分组和比较的。在此之后，指出了未来的方向和开放的研究问题。