## 3 Network Slicing in 5G Networks
### Energy Demand of Network Slicing Service Types
\begin{table}
\begin{tabular}{p{42.7 pt} p{113.8 pt} p{113.8 pt} p{113.8 pt} p{113.8 pt}} \hline \hline
**SST ID** & **SST ID** & **Characteristic** & **Use Case** & **NS Energy Demand/Capacity/** \\ \hline eMBB & \(1\) & Enhanced Mobile Broadband Connectivity (eMBB) slice optimized for managing 5G enhanced mobile broadband services & Entertainment, gaming, virtual and augmented reality, video streaming, fixed wireless access & High \\ \hline URLLC & 2 & Slice designed for ensuring ultra-reliable low-latency communication (URLLC) & Public safety, remote medicine, emergency response, smart grid & High \\ \hline MIoT & 3 & Slice tailored for managing extensive (Massive) Internet of Things (MIoT) applications & Sensor networks, smart telemetry, smart homes, Internet of Everything (IoE) & Low \\ \hline V2X & 4 & Slice crafted for handling Vehicle-to-Everything (V2X) services & Autonomous driving, driver and pedestrian safety management, traffic management, road infrastructure management & Very high \\ \hline HMTC & 5 & Slice suitable for facilitating high-performance machine-type communications (HMTC) & Industrial IoT, smart factories, smart cities & Low \\ \hline HDLLC & 6 & Slice engineered for managing high-data-rate and low-latency communications (HDLLC) & Extended reality and multi-modality services (video, audio, ambient-sensor and haptic data) & Very high \\ \hline
**SST ID** & **Area Traffic Capacity** & **Peak/ Experience Latency Data Rate** & **Spectrum Efficiency** & **Mobility Latency** & **Connection Density** \\ \hline eMBB & High High High High High High High High High Low Low Low Low Low Low Low High High High Low Low Low  
**The implementation of eMBB slices** is applicable to the existing mobile broadband networks and can expand the possible uses of the existing network towards a fully interconnected society. It is expected that emerging services, such as entertainment, gaming, virtual and augmented reality, video streaming, and fixed wireless access, will have a dominant representation in the 5G eMBB slice (Table 2). The **URLLC services** are related to the use cases characterized by a significant need for instantaneous interaction. For instance, public safety, remote medicine, emergency response, and smart grids are expected to be typical examples of NSs offering URLLC services (Table 2). However, network resources that need to ensure the functionality of eMBB and URLLC slices will have a high energy demand due to the large and frequent intensity of the data traffic that is characteristic for eMBB and URLLC slices. The **MIoT SST type represents massive machine-type communications (mMTC) slices. ** This category encompasses cost-effective, energy-efficient, long-range machine-type communication (MTC) on the one side, and high-speed broadband MTC on the other side of the communication link. In the forthcoming years, lightweight and low-power sensors might be increasingly incorporated into everyday life, and consequently, this will lead to a notable increase in the deployment of sensing devices. Intelligent services will become ubiquitous in both urban and rural settings, facilitating tasks such as sensor networks, smart telemetry, smart homes, and the Internet of Everything (IoE) as typical expected examples of MIoT service. Additionally, **high-performance machine-type communication (HTMC)** is defined as another SST type, which includes low-latency, high-availability, and high-data-rate services without the need for any mobility or auxiliary links. Typical examples of HTMC NS are the implementations of industrial IoT, smart factories, smart cities, etc. It is expected that NSs that need to ensure the functionality of **mMTC** or **HTMC** will have a low energy demand due to the need for the sporadic transfer of data, during which the transmission policy can be adapted to reduce the NS resources' energy consumption.