## 1 Introduction
Among several requirements, high spectral efficiency is one of the significant needs of smart hospitals [9]. The transfer of medical data videos and huge scan images requires high bandwidth and low latency, which can be largely assisted by advanced 5G radio [10]. Hence, it becomes necessary to design a 5G radio, which can provide a fast data transmission rate and high bandwidth as required for several applications such as smart hospitals, IoT, smart cities, industries, and so on. In [11], it is also assumed that the use of 5G will hurt the environment and the human body. However, till today, there is no substantial evidence to prove that the frequency used in 5G may cause severe or deadly disease. In the upcoming 5G-based health care system, the medical team will secure rapid access to the huge stock of patient information at any time. This will allow the medical team to analyse the real-time data of the patients. Additionally, the advance smart hospitals will provide a facility to seek advice and monitor the condition of patients using 5G devices for remote health care, allowing medical experts of different countries to work. The objectives of 5G smart hospitals are shown in Figure 1. The reliable rollout and combination of cloud-assisted services at the machine and network level. The protection of large medical information stored in the cloud needs to be considered. Technologies such as 5G and IoT will play a crucial role in the health monitoring framework. Although there are some concerns, such as implementing IoT healthcare's system privacy and information trade-off. The combination of 5G and IoT can be used in several applications such as digital remote healthcare, cognitive manufacturing, robust communication between rural and urban areas, autonomous vehicles, and intelligent architecture for building [12]. The regularization of 5G-based applications demands a high spectral efficiency [13]. The challenges of future smart hospitals are as follows:  
1. The implementation of medical machines for merchant secured management. This framework will help to share the information between several intelligent medical machines utilizing different protocols. 2. There is a constraint on functional smart medical devices to process the large quantity of data in the network. The network management of the distribution of resources is also considered one of the major concerns in smart hospitals. 3. It is important to ensure that the various medical machines are connected 24/7 from different locations and with mobility. 4. The utilization of resources and design of an energy-efficient device are the major concerns in the implementation of the modern medical system. The future smart hospital will be 24/7 associated with a number of small cells, machines, sensors, and IoT to ensure the quality, coverage, and throughput of the framework. The objective of the projected work is to analyse a highly efficient waveform for 5G-based smart hospitals. To the best of our knowledge, this is the first time the projected work has been explored. * The key objective of the proposed work is to study the several characteristics of 5G smart hospitals in [7; 14; 15; 16; 17; 18; 19; 20; 21; 22; 23; 24; 25; 26]. * A significant enhancement in bandwidth is accessing and data rate is accomplished in the projected waveform schemes. It is seen that, by introducing filters at the transceiver of the system, the ideal spectral performance is obtained. The spectral performance of the system is greatly enhanced by integrating the OFDM and FBMC waveforms and thus makes it suitable for 5G radio. The enhancement of capacity, BER, and bandwidth is regarded as vital to support the facilities associated with smart hospitals.