## 6 Results and Evaluation
### Blockchain Network Bandwidth Usage Analysis  
This section discusses the bandwidth usage of the Hydrachain, Monero, and Duino coin blockchain networks. Bandwidth is an essential parameter to assess the scalability of blockchain networks. We used blockchain networks with seven nodes, fifteen nodes, and twenty nodes to measure the bandwidth. Figure 7 shows the bandwidth usage of the Hydrachain blockchain networks in terms of the number of blockchain nodes [41]. As per the results in Figure 7, the bandwidth usage of the seven-node Hydrachain blockchain network varies between 400 Kbps and 800 Kbps. The Hydrachain blockchain network with fifteen nodes has a bandwidth usage from 1000 Kbps to 1600 Kbps. The network with twenty blockchain nodes has a bandwidth usage between 1400 Kbps and 1600 Kbps. With the results, we can emphasize that bandwidth usage increases with the increase in blockchain nodes. Figure 8 shows the bandwidth usage of Monero blockchain networks. As per the results, the Monero network with seven blockchain nodes has a bandwidth usage deviation from 40 Kbps to 60 Kbps. Also, the network with fifteen Monero blockchain nodes has a bandwidth variation between 100 Kbps and 140 Kbps. The network with twenty blockchain nodes has a bandwidth usage between 80 Kbps and 160 Kbps [42]. These results show that the number of blockchain users causes the increment in bandwidth usage. Also, Monero blockchain networks' bandwidth usage is lower than the Hydrachain blockchain networks. \begin{table}
\begin{tabular}{c c c c c c c c} \hline  & **Hydrachain** & & & **Monero** & & **Duino Coin** & \\ \hline
**07 Nodes** & **15 Nodes** & **20 Nodes** & **07 Nodes** & **15 Nodes** & **20 Nodes** & **07 Nodes** & **15 Nodes** & **20 Nodes** \\ \hline
214 ms & 388 ms & 419 ms & 485 ms & 720 ms & 817 ms & 239 ms & 390 ms & 450 ms \\
215 ms & 389 ms & 418 ms & 486 ms & 728 ms & 818 ms & 240 ms & 390 ms & 450 ms \\
213 ms & 389 ms & 420 ms & 485 ms & 725 ms & 816 ms & 238 ms & 391 ms & 451 ms \\
214 ms & 389 ms & 418 ms & 485 ms & 729 ms & 815 ms & 238 ms & 392 ms & 452 ms \\
213 ms & 387 ms & 419 ms & 485 ms & 730 ms & 816 ms & 237 ms & 392 ms & 452 ms \\
214 ms & 388 ms & 419 ms & 486 ms & 728 ms & 815 ms & 237 ms & 392 ms & 452 ms \\
215 ms & 389 ms & 418 ms & 488 ms & 728 ms & 819 ms & 238 ms & 391 ms & 452 ms \\
213 ms & 389 ms & 420 ms & 484 ms & 730 ms & 819 ms & 237 ms & 391 ms & 450 ms \\
213 ms & 389 ms & 418 ms & 485 ms & 729 ms & 820 ms & 239 ms & 392 ms & 449 ms \\
214 ms & 387 ms & 419 ms & 485 ms & 728 ms & 820 ms & 240 ms & 392 ms & 449 ms \\ \hline \end{tabular}
\end{table} 
Table 1: Network latency data sample of blockchain networks. Figure 7: Hydrachain blockchain bandwidth usage. As Figure 9 shows, the bandwidth usage of the seven-node Duino coin blockchain network is 50 Kbps, and the network with fifteen nodes has a bandwidth deviation between 100 Kbps and 200 Kbps. Also, the network with twenty Duino coin blockchain nodes has a bandwidth deviation from 50 Kbps to 300 Kbps. These results show that the Duino coin blockchain networks have a lower bandwidth usage than the Hydrachain blockchain networks and a higher bandwidth usage than the Monero blockchain networks. Also, as results indicate, the bandwidth usage increases with the increase in blockchain network users [42]. As Figure 10 shows, the mean bandwidth usage of the Hydrachain blockchain deviates from 559.6 Kbps to 1566.3 Kbps. The network with twenty blockchain nodes has the maximum mean bandwidth usage of 1566.3 Kbps. The network with seven blockchain nodes has the minimum mean bandwidth usage, which is 559.6 Kbps. The network with fifteen blockchain nodes has a mean bandwidth usage of 1239.2 Kbps [42]. As shown in Figure 10, the mean bandwidth usage of the Monero blockchain networks deviates from 47.8 Kbps to 121.9 Kbps. The maximum mean bandwidth usage was recorded as 121.9 Kbps at the network with twenty blockchain nodes, and the minimum was recorded as 47.8 Kbps at the network with seven blockchain nodes.