# A Modular Experimentation Methodology for 5G Deployments: The 5 GENESIS Approach
## 5 Experimental Setup
### ED Definition
In particular, an extremely high value for the maximum RTT is registered (about 555 ms); this is followed by a large confidence interval and it significantly differs from the 95% percentile indicator (about 48 ms), leading to the conclusion that such a value may be a unique deviation not completely representative of the performance achievable in the scenario under analysis. The proposed methodology defines such indicators as a final statistical agglomeration of the measurements collected over several iterations (25 in our test cases), as defined in the \"Calculation process and output\" field of Table 2. As such, the methodology also allows for a more detailed, per-iteration overview of the same measurements. To showcase this aspect, we report, in Figure 4, the KPI statistics per iteration (in a boxplot format), for LoS/NLoS scenarios and TC_THR_UDP (Figure 4a) and TC_RTT (Figure 4b) test cases. Selected complementary measurements are also depicted for both test cases. One the one hand, Figure 4a depicts the average SINR and the MCS index, which help to understand the context in which the measurements were taken. Among others, in the NLoS scenario, low SINR values directly map to low MCS index and, thus, the resulting low throughput. Given the poor signal level in NLoS, the scheduler reduces the amount of transmitted data to increase the redundancy and maintain the error rate at a reasonable level. As a matter of fact, the BLER observed in the NLoS scenario is lower than 10%, which is a typical target value when the propagation conditions are not favourable enough, so that the Hybrid Automatic Repeat reQuest (HARQ) mechanism can operate optimally. However, given that the MCS index is reduced to 3, the obtained throughput is about 15 Mbps, extremely lower than the throughput of about 180 Mbps obtained in the LoS case, where MCS index is the maximum (27) across all iterations, leading to the use of a high modulation order (256-QAM). \begin{table}
\begin{tabular}{c c c c} \hline \hline \multirow{2}{*}{**Parameter**} & \multirow{2}{*}{**Indicator**} & \multicolumn{2}{c}{**Scenario**} \\ \cline{3-4}  & & **LoS** & **NLoS** \\ \hline \multirow{8}{*}{UDP Throughput [Mbps]} & Average & \(179.45\pm 0.34\) & \(14.95\pm 0.45\) \\  & Median & \(179.14\pm 0.37\) & \(15.25\pm 0.09\) \\  & Min & \(162.86\pm 6.56\) & \(5.78\pm 1.65\) \\  & Max & \(195.80\pm 2.19\) & \(19.45\pm 3.34\) \\  & 5\% Percentile & \(171.22\pm 0.58\) & \(11.71\pm 1.00\) \\  & 95\% Percentile & \(188.64\pm 1.21\) & \(17.64\pm 2.53\) \\  & Standard deviation & \(5.47\pm 0.54\) & \(2.09\pm 0.78\) \\  & Average & \(21.73\pm 0.07\) & \(7.27\pm 0.26\) \\  & Average & \(27.00\pm 0.00\) & \(2.96\pm 0.02\) \\  & Average & \(-52.42\pm 1.52\) & \(-115.41\pm 0.29\) \\  & Average & \(-10.80\pm 0.00\) & \(-11.61\pm 0.04\) \\  & Average & \(2.00\pm 0.00\) & \(1.001\pm 0.001\) \\  & Average & \(0.23\pm 0.05\) & \(8.77\pm 0.13\) \\ \hline \hline \end{tabular}
\end{table} 
Table 4: Experiment 1: Statistical results of TC_THR_UDP test case in SC_LoS_PS and SC_NLoS_PS scenarios (Acronyms, as per Table 2; PDSCH MCS CW0 stands for Physical Downlink Shared Channel MCS for Codeword 0).