## 6 Results, Analysis and Discussion
### Statistical Analysis of Performance Metrics
#### 6.1.3 Tries with Box and Whiskers Representation  
In Figure 6, we display the average number of tries performed by the coordinator node to communicate with each node in the network. This variable indicates how much knowledge the coordinator node has about the network topology and the quality of the routes. When there is no jamming, the protocols have boxes of the same size for the three cases, which means that 50% of the data is distributed in approximately the same average values. However, the average value of tries for MPH is 1.33, whereas for DSR, it is 1.58 and for AODV 1.65. This means that MPH has 15.8% better performance connectivity of nodes with respect to DSR and 19.4% compared with AODV. Then, 50% of the nodes has between one and two tries, 25% of the nodes three tries and 25% of the nodes four tries for DSR. Besides, 50% of the nodes has between one and two tries, 25% of the nodes three tries, 24% of nodes four tries and 1% of the nodes five tries for AODV. While for MPH, 50% of the nodes has between one and two tries and 50% of nodes three tries (three being the maximum value reached in MPH under normal network behavior). Figure 6: Average tries when the jammer node is in the middle of the topology. Figure 6 denotes metric tries when the jammer node is in the middle of the topology. We notice that in the random (\(\rho=50\) packets/s) jamming, the boxes of the three protocols remain the same as when there is no jamming (this is equivalent to 50% of nodes). However, for AODV, some nodes manifest variations on the evaluated parameter, which is 24% of nodes having four tries and 1% of nodes having five tries. For DSR and MPH, 50% of the remaining nodes presents four tries. However, for MPH, the average value of tries is 1.57, while for DSR, it is 1.7 tries. For random (\(\rho=80\) packets/s) jamming, AODV changes, and now, 50% of the nodes is between one and three tries and 50% of nodes four or five tries. DSR maintains 50% of nodes between one and two tries, another 25% of nodes three tries and the other 25% between four and five tries. MPH's percentages of nodes are maintained the same as in the random (\(\rho=50\) packets/s) jamming. Concerning the reactive jamming, AODV and DSR have 50% of nodes from one to three tries, and the other 50% of nodes has four, five and six tries. MPH maintains its previous features only with a small variation in the mean value of tries. With these numbers, we remark that the MPH protocol maintains its good performance and is not prone to collapse due to faulty links. With respect to the case when the jammer node is close to the coordinator, for the random (\(\rho=50\) packets/s) and random (\(\rho=80\) packets/s) jammings, MPH has 12% low average tries with respect to AODV and 10% against DSR. One notable change can be observed in the reactive jamming, where AODV and DSR vary from one to three tries for 50% of the nodes. AODV varies between four and five tries for the other 50% of nodes, and for DSR, the remaining 50% of nodes has four tries. MPH maintains 50% of nodes varying between one and two tries, 24% of nodes three tries and only 1% of nodes four tries. This result shows the strength of the MPH against an attack and its better performance regarding encapsulation of failures. For the case when the jammer node is far from the coordinator node, for the random (\(\rho=50\) packets/s) jamming, the three protocols have 50% of nodes with values between one and two tries and 25% of nodes three tries. For AODV, the remaining 25% of nodes has five tries, and the tries' average value is 1.8. In DSR case, the remaining 25% of nodes has five tries, and the tries mean value is 1.72. In contrast, for MPH, the remaining 25% of nodes has four tries, and the tries mean value is 1.6 (the lowest value compared with the other protocols). In the random (\(\rho=80\) packets/s) jamming, AODV has 50% of nodes between one and three tries, while DSR and MPH remain with the same values in the random (\(\rho=50\) packets/s) jamming case.