# Magic of 5G Technology and Optimization Methods Applied to Biomedical Devices: A Survey
## 5 Challenges and Future Trends
### Security Concerns  
Medical devices are growing and developing day-by-day and it is not essential to be settled in clinical places. They can be placed at homes near patients--using both wired and wireless channels--to continuously care for and record the data of sick people. This state-of-the-art situation created by the biomedical and wearable devices tremendously reduces the cost of healthcare. Hereby, one of the factors that has become important is that of security. This matter is significant as the achieved data from patients are subject to legal constraints; also, the lack of privacy may physically harm the patients due to the modified or suppressed data [86; 87; 88]. For the medical devices that are working and communicating through the wireless networks, interruptions from unauthorized people can generate problems and deep hazards. In simple words, any remote offense can provide incorrect and false data that result in inaccurate treatments which can be harmful [89]. The 'endpoint Protection' using the antivirus 'cybeats' where cryptography and vulnerability analysis are employed [90; 91; 92]. The cryptography is the science of secure communications techniques where just the sender and intended recipient can obtain the message, as presented in Figure 26.  
Figure 25: Illustration of the presented health monitoring for detecting heart diseases [84]. To any system, security is a significant issue and the medical devices typically comprise of heterogeneous elements. Nowadays, medical data are transferred by wireless networks due to the high reliability and speed. For this case, effective and trustworthy components and systems must be employed for taking care of patients' physical security and data privacy, as well as of the physical security and data security of medical devices. For 5G wireless networks, cryptography science can help in transmitting data from patient people to doctors in an effective and healthy way. \begin{table}
\begin{tabular}{p{12.3 pt} p{128.0 pt} p{128.0 pt} p{128.0 pt}} \hline
**Ref.** & **Scope** & **Contribution** & **Specifications** \\ \hline
[42] & Provides concerns related to the future wearable systems. & Introduces the system level dynamics that governs next-generation personal networks. & Meeting the requirements of WirelessHD, and ECMA-387 standards. \\ \hline
[29] & Constructing a system for joining the emotion computing and emerging communication technologies. & Uses the 5G technology for accelerating the original data collection. & Includes emotion and cloud computing with software-defined network. \\ \hline
[37] & 5G healthcare with medical Internet of Things (MoTJs). & Presents a medical dongle for blood glucose and uric acid monitoring. & Uploading the medical images via online medical platform. \\ \hline
[3] & 5G-Smart Diabetes. & A system including smart clothing, smartphone, and big data clouds. & Personalized diagnosis and treatment suggestions. \\ \hline
[47] & Wearable communication under 5G networks. & Presenting a multilayer communication architecture combines cloud/edge technologies, etc. & Efficiency, power efficiency, and connectivity can be enhanced by employing transmission technologies. \\ \hline
[36] & 5G wearable networks with cognitive computing. & Presenting the network slice-based 5G wearable networks and a data-driven resource management framework. & Improving the utilization ratio of resources. \\ \hline
[48] & Non-radiative wireless energy transfer. & Presenting the printed spiral resonator. & Power transfer efficiency = 74.96\%. \\ \hline
[93] & A rectenna design at 28 GHz. & Creating a detector working at low input power levels. & Input power of 500 μW and responsivity of 96 V/W. \\ \hline
[49] & Characterizing the hand palm local channel. & Developing ultra-low power wireless sensors for wearable devices. & Path loss variation= higher than 3 dB. \\ \hline \end{tabular}
\end{table} 
Table 1: Summary of some reported biomedical studies with the focuses and output specifications of each one.