# Autonomous Wireless Sensor Networks in
## 3 Results  
### Testing the WSN  
Several tests were performed to get the primary metrics describing the Quality of Service (QoS) provided by the PentaSense WSN. These measurements give us statistical data that can support different configurations of the network. Moreover, the results highlight the factors that need to be considered when testing WSN networks within the IPM framework. A summary of the results is shown in Table 1.  
\begin{table}
\begin{tabular}{l l l l} \hline \hline
**Test Name** & **Test Parameters** & **Measured** & **Target** \\ \hline \multirow{8}{*}{Signal Strength} & RockBlock signal strength; cloud cover & \multirow{2}{*}{1} & \multirow{2}{*}{\(\geq\)3} \\  & 10/10; raining & & \\ \cline{2-3}  & RockBlock signal strength; cloud cover & \multirow{2}{*}{2} & \multirow{2}{*}{\(\geq\)3} \\  & 10/10; no rain & & \\ \cline{2-3}  & RockBlock signal strength; cloud cover & \multirow{2}{*}{3} & \multirow{2}{*}{\(\geq\)3} \\  & 5/10; no rain & & \\ \cline{2-3}  & RockBlock signal strength; cloud cover & \multirow{2}{*}{4} & \multirow{2}{*}{\(\geq\)3} \\  & 3/10; no rain & & \\ \cline{2-3}  & RockBlock signal strength; cloud cover & \multirow{2}{*}{5} & \multirow{2}{*}{\(\geq\)3} \\  & 0/10; no rain & & \\ \hline \multirow{8}{*}{Data Loss} & Number of transmissions & 100 & 100 \\ \cline{2-3}  & Number of packets billed & 100 & 100 \\ \cline{2-3}  & Number of packets received & 96 & 90 \\ \hline \multirow{8}{*}{Bandwidth} & No of packets with full pay-load & \multirow{2}{*}{20} & \multirow{2}{*}{\(>\)6} \\  & (340 bytes)/min & & \\ \hline \multirow{8}{*}{Coarse Grain Localization} & Localization error; RockBlock signal & \multirow{2}{*}{\(<\)2 km} & \multirow{2}{*}{-} \\  & strength 5 & & \\ \cline{2-3}  & Localization error; RockBlock signal & \multirow{2}{*}{\(<\)5 km} & \multirow{2}{*}{-} \\  & strength 4 & & \\ \cline{2-3}  & Localization error; RockBlock signal & \multirow{2}{*}{\(<\)15 km} & \multirow{2}{*}{-} \\  & strength 2 & & \\ \cline{2-3}  & Localization error; RockBlock signal & \multirow{2}{*}{\(<\)30 km} & \multirow{2}{*}{-} \\  & strength 1 & & \\ \hline \multirow{8}{*}{Point to point communication} & Maximum data rate; 50 m distance & 48 kbps & \begin{tabular}{l} Max data \\ loss \(<\)2\% \\ \end{tabular} \\ \cline{2-3}  & Maximum data rate; 40 m distance & 64 kbps & \begin{tabular}{l} Max data \\ loss \(<\)2\% \\ \end{tabular} \\ \cline{2-3}  & Maximum data rate; 30 m distance & 128 kbps & \begin{tabular}{l} Max data \\ loss \(<\)2\% \\ \end{tabular} \\ \cline{2-3}  & Maximum data rate; 20 m distance & 256 kbps & \
\begin{tabular}{l} Max data \\ loss \(<\)2\% \\ \end{tabular} \\ \hline \multirow{2}{*}{Energy autonomy} & Still alive signal at 0 dBm to sink every 10 s &
\begin{tabular}{l} 75\% \\ charged at \\ end of test \\ \end{tabular} & Min 8 weeks \\ \hline \multirow{2}{*}{Mesh network configuration} & 15 sensor, 30 m, 48 kbps & 15 & 15 \\ \hline \multirow{2}{*}{Automated discovery} & Automatic discovery of 15 sensors by the & \multirow{2}{*}{\(<\)30 s} & \multirow{2}{*}{\(<\)1 min} \\  & gateway & & \\ \hline \multirow{8}{*}{Data loss test} & 24 h; number of allowed retransmissions 0 & \multirow{2}{*}{\(<\)3\%} & \multirow{2}{*}{\(<\)1\%} \\  & 24 h; number of allowed retransmissions 1 & \multirow{2}{*}{\(<\)1\%} & \multirow{2}{*}{\(<\)1\%} \\  & 24 h; number of allowed retransmissions 2 & \multirow{2}{*}{\(<\)0.2\%} & \multirow{2}{*}{\(<\)1\%} \\  & 24 h; number of allowed retransmissions 3 & \multirow{2}{*}{\(<\)0.2\%} & \multirow{2}{*}{\(<\)1\%} \\  & 24 h; number of allowed retransmissions 4 & \multirow{2}{*}{\(<\)0.2\%} & \multirow{2}{*}{\(<\)1\%} \\ \hline \hline \end{tabular}
\end{table}
Table 1: Summary of test results.