# Evaluating the Feasibility of Intelligent Blind Road Junction V2I Deployments
## 4 Results
### Throughput
Figure 9: eCDF plot of throughput performance distribution for sensor data using the Sub-6 GHz connectivity setup (CCTV: 8.004 Mbps, Action: 49.997 Mbps, Consumer: 123.915 Mbps, Automotive: 122.780 Mbps median throughput). Unlike the object data, as can be seen in Table 4, the Sub-6 GHz connectivity setup did not maintain the same degree of reliability across all of the chosen sensor data rates. The highest degree of reliability was maintained for the CCTV Camera sensor data rate (8 Mbps), as is noted from the standard deviation of 22 bytes. As discussed regarding the object data, there is a distinct pattern in the eCDF curve and outliers in the box plot of the CCTV (8 Mbps) data rate in Figure 9, which is the same artefact of the MTU size used by iPerf. The reliability of the Sub-6 GHz connectivity setup begins to notably deviate when the Action Camera (50 Mbps) data rate is considered. In Table 4, it can be seen that the mean throughput is 50.001 Mbps; however, the kurtosis value (167.687) is notably higher than all other data rates. The outliers that result in this increased kurtosis value are shown in the box plot for this data rate in Figure 9. Given that the test setup used a line-of-sight (LOS) connection between the pseudo-CIV and the gNodeB, these outliers may be caused by asynchronous interference from the environment. The reliability of the Sub-6 GHz connectivity setup is significantly challenged when considering the final two sensor data rates, i.e., Consumer Camera (150 Mbps) and Automotive Camera (800 Mbps). It is evident that the maximum throughput of the Sub-6 GHz connectivity setup is reached as an average throughput of \(\sim\)120 Mbps could not be appreciably exceeded in either case. As previously mentioned, given the noted deviation in reliability beginning at the Action Camera (50 Mbps) data rate, the previous measurements from where the deviation began were repeated using the mmWave connectivity setup and are detailed in Table 5 and Figure 10. From these repeated mmWave measurements, there is a significant increase in reliability compared to the Sub-6 GHz connectivity setup in Table 4. Most notably, the mmWave connectivity setup achieved the desired mean throughputs for all three of the chosen data rates, i.e., Action Camera (51.084 Mbps mean), Consumer Camera (153.557 Mbps mean), and Automotive Camera (811.110 Mbps mean). To a lesser extent, a comparable irregularity in outlier data, characterised by notably high kurtosis values, that is found for the Sub-6 GHz connectivity setup is also found for the mmWave connectivity setup regarding the Action Camera (50 Mbps) and Consumer Camera (150 Mbps) data rates. As such, it is possible that the process responsible for these outliers may not be related to the wireless channel, given that the anomaly is present in both connectivity setups. Additionally, it is unlikely that the wired link between the pseudo-FSN and the pseudo-CIV is responsible for the outliers, as the only node between them is the gNodeB  
Figure 10: eCDF plot of throughput performance distribution for sensor data using the mmWave connectivity setup (Action: 51.196 Mbps, Consumer: 153.540 Mbps, Automotive: 818.829 Mbps median throughput). which has no other traffic to serve. Thus, it is more likely that the outliers are a consequence of the operation of the iPerf tool as it attempts to generate packets for a given data rate.