Page 135 - Kaleidoscope Academic Conference Proceedings 2024

Innovation and Digital Transformation for a Sustainable World

(a) Screenshot of HD video played on UE screen (b) HD video application data throughput (Mbps) versus time
Figure 6 - UE’s video replay screenshot and application throughput graph.

preconfigured with basic setup parameters, including IP alongside the video content. Additionally, the control
addresses and namespaces. operation visualization monitor displays graphs of CPU,
INCA functions and interfaces: INCA function modules memory, bandwidth utilization of the 5GC network
are executed, and integrated control interfaces are functions, and the bandwidth utilization of the NTN.
initialized to communicate through Web-based APIs with Similarly, the NTN topology visualization window
individual network segment controllers. illustrates the three NTN paths. As an illustration of the
Control operation visualization monitor: Grafana tools demo visualization, Fig. 6 shows a screenshot of the HD
are initialized to display resource utilization monitoring video played on UE’s screen and the monitoring graph of
graphs drawn with the monitoring data retrieved from the HD video application data throughput.
INCA functions. 5.2 Validation 2: Network monitoring & control
5.1 Validation 1: Network service creation This demonstration confirms that the INCA can monitor
This demonstration confirms that INCA can create three and control the resource utilization of NTN, 5GC, and DN
network services, each tailored for HD, SD, and LD video continuously, and maintain the required level of QoS
applications when service creation requests are orchestrated consistently. In this scenario, we create a single network
from INCA functions to the controllers of the 5GC, NTN, service by allocating 25 Mbps bandwidth to the NTN
and DN. UEs, having associated with their respective segment, emphasizing the adjustment of NTN bandwidth
network services, initiate downloading and playing the HD, due to its scarcity compared to TN bandwidths. Three UEs
SD, and LD videos on their screens. The QoS graphs, connect to the same network service to download and play
including data rate, round-trip time, and jitter, are displayed the HD video content. Resource utilization graphs for 5GC

(a) NTN bandwidth utilization versus experiment time. (b) UPF’s resource utilization versus experiment
When network congestion is created by injecting time. The bandwidth and CPU utilization of the
background traffic from around 60 seconds, the NTN UPF increase from 60 seconds due to the
bandwidth utilization surges to nearly 100%. The background noise traffic. However, as the utilization
utilization decreases after increasing the NTN is still very nominal, the INCA controller decides
bandwidth by the control decision made by the INCA nothing to do with the control of CPU, bandwidth,
controller. and memory resources.

Figure 7 - NTN path bandwidth utilization and 5GC (central) UPF bandwidth, CPU, and memory utilization when network
service is congested by background traffic.

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