Page 24 - ITU KALEIDOSCOPE, ATLANTA 2019

2019 ITU Kaleidoscope Academic Conference

and the remote clinic (hospital) scenario. The control massive Internet of things (IoT) devices connected to
center is in FAHZZU, whereas the remote surgery robot the Internet in order to continuously monitor the vital
workbench can be installed at either the ambulance side signs.
(Figure 3) or the remote clinic (hospital, control center, As depicted in Figure 5, in the 5G-enabled smart
etc.) side. In order to offer reliable connections between ward, we connect ward equipment such as the body
the control center and the surgery robot workbench, we vital sign monitoring sensors, intravenous injector, to
employ both the 5G wireless and extranet connections. a 5G wireless network. The patient’s vital signs and
The 5G wireless connections are used for the ambulance venous transfusion can be remotely monitored and
scenario because of the frequently moving demands. On controlled. Whenever the transfusion is about to finish,
the other hand, the extranet connections are used for the the transfusion monitoring system can inform the nurse
remote clinic (hospital) scenario. Different from the 5G station via 5G networks to withdraw the needles. In
wireless networks, the extranet network can offer more contrast, patients and their escorts need to watch closely
reliable connections. the transfusion speed, and call the nurse by pressing the
emergency button if needed.
Asides from the remote diagnosis and treatment,
specialized doctors can remotely operate the surgery if Secondly, doctors and nurses in ward rounds can share
needed. Severely injured patients do not need to travel the patient’s information with each other, and also
to the big hospitals in case of long distance traveling share with the doctor’s office. Real-time information
may cause serious damage. Additionally, it can save can also be transferred to the security office in case
precious rescue and operation time. The remote clinic of encountering a medical dispute. Security offices can
scenario, on the other hand, can provide remote surgery immediately respond to these disputes and record the
operations with less risk compared to the ambulance videos as evidence if needed.
scenario as it does not need any travel. However, due
to the operational risk, we so far have not demonstrated 3. CHALLENGING ISSUES
or tested the 5G-enabled remote surgery yet.
We have introduced the potential solutions and our
implementations of the 5G-enabled health systems in
2.3 5G-enabled smart monitoring the previous section. In the sequel, we will discuss
challenging issues that are faced on implementing
5G-enabled health systems. Currently, eMBB and
mMTC can be easily accomplished by emerging 5G
NR technologies. However, it is still difficult to realize
the URLLC requirements, especially the less than 1 ms
latency. In this regard, we might need some trade-off
strategies between the latency and reliability. Moral
ethics is another challenging issue for implementing
5G-enabled health systems.

3.1 Trade-off between ultra-reliable and low
latency

According to Shannon theory, the system achievable
capacity can be given as

P t
C = log(1 + SINR) = log(1 + ), (1)
P i + σ 2
where SINR is the signal to interference plus noise ratio
(SINR). As claimed by its definition, it is the allocated
power for transmission (P t ) divided by the channel
2
interference power (P i ) and channel noise power σ .
Figure 5 – Demonstration of the 5G-enabled smart
With achievable capacity in hand, system achievable
monitoring in FAHZZU.
transmission speed R will be R = BC, where B
The 5G-enabled smart ward and 5G-enabled in-home denotes the allocated carrier bandwidth. From these
monitoring are two typical application scenarios of two equations, it is quite straightforward that more
our 5G-enabled smart monitoring implementations. transmission power and wider bandwidth will yield
Similar to the 5G-enabled remote diagnosis and high achievable transmission speed. Moreover, we can
treatment, 5G-enabled smart ward and 5G-enabled employ some new radio technologies and architectures
in-home monitoring greatly rely on URLLC and eMBB to achieve faster transmission speeds and connect more
characteristics. The in-home monitoring also requires devices.

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