# Magic of 5G Technology and Optimization Methods Applied to Biomedical Devices: A Survey
## 2 Biomedical Devices through 5G and Next-Generation Technologies  
Biomedical devices operating in the ISM frequency band are employed for investigating various physiological and biomedical signals [13]. The implantable and wearable devices make use of the wireless communication technology for safely receiving data from patients and transmitting any response data or enquiry from the doctors, in order to diagnose and monitor diseases in real time. Hence, in some cases, advanced and high-rate communication networks are required for transporting data. Figure 2 presents the overall view of the wireless communication network topology from a medical viewpoint as the wearable devices are gathering data from sick people and then transmitting data to the doctors for remote processing.  
Following the success of 2G, 3G, and 4G technologies, 5G technology has been proposed for its higher throughput. This new technology aims to provide benefits to the development of Internet of Things (IoT) that incorporates wireless sensor networks, wireless mesh networks, wearable health care systems [19; 20; 21], etc. According to the report by the World Health Organization (WHO), a lack of healthcare workers is expected by 2035 [22]. Hereby, developing the self-health monitoring and intelligent wearable healthcare systems becomes very critical, also considering the aging population in the world.  
The 5G networks provide potential useful possibilities for healthcare thanks to the unique characteristics in terms of speed, massive device connectivity, reliability, and so on [12; 23]. These wireless networks pave the connection between the hospital and patients by commonly using integrated sensors and actuators [20].  
The 5G technology, unlike Wi-Fi and Bluetooth, can handle the hazard of communication loss when connecting and managing the performances of several networks. Additionally, 5G networks can have suitable performance when there are multiple operators with various and many users that are expected to have different applications. Hence, 5G technology enables medical devices to provide reliable communication services with improved and critical life-supporting functions [23].  
Figure 2: Use of 5G technology to remotely treating patients.  
With the development of the 5G technology, 6G technology is expected to support even more mobile connections than 5G capacity and to provide data rates of 1 terabyte per second. These advantages can be very good candidates to the Internet of Things (IoT) which is slowly trying to be used in the medical applications that will be named as Internet of Medical Things (IoMT) [24].  
Consequently, the importance of 5G technology from a medical perspective [12; 25; 26; 27; 28] can be summarized as follows:  
* Improved speed of data transferring and large bandwidth;
* Advanced safety, health and security;
* Reduced waiting time (One millisecond end-to-end round-trip delay) for receiving data from wearable devices;
* Improved efficiency with capability to connect to many devices;
* Reduced power consumption;
* Advanced capacity for supporting devices;
* Possibility of the implementation of higher security standards.