We can see that, the network has successfully transmitted the UDP packets in every one second from the senders (or APs) to the receiver (or GW). Moreover, we can see that the total processing delay increases rapidly with the number of APs. The line of total processing time likes a parabolic arc. That is due to the increasing hop count on the mesh routing path [AWW05, HWC08]. The total processing delay at one AP for sending fifty 20-bytes packets is below the one second threshold. 5.4.3 The WMAN Simulation Results Analysis Figure 5.5 - The simulation results of WMAN point-to-multipoint topology with one BS and ten GWs in the network. GW sent 180 packets in every one second to the BS. Figure 5.5 shows the simulation results in every one second for the WMAN topology. There are one BS and ten GWs in the network. GW sent 180 packets in every one second to the BS. There are 1,800 UDP packets sent to the BS in every second. The number of received packets are not exactly equal the number of sent packets in every second. The difference between them is between -5 and 5 packets. If a packet does not arrive in the same second, it will arrive in the next second. The average delay of a packet that is about 5.5 milliseconds, can validate this hypothesis. We also see that, the total transmission delay converges to 930 milliseconds. Figure 5.6 - The simulation results for the WMAN topology. The number of GWs is assigned from the one to ten in the experiments to evaluate the changing of total processing delay at the GWs.
We can see that, the network has successfully transmitted the UDP packets in every one second from the senders (or APs) to the receiver (or GW). Moreover, we can see that the total processing delay increases rapidly with the number of APs. The line of total processing time likes a parabolic arc. That is due to the increasing hop count on the mesh routing path [AWW05, HWC08]. The total processing delay at one AP for sending fifty 20-bytes packets is below the one second threshold. 5.4.3 The WMAN Simulation Results Analysis Figure 5.5 - The simulation results of WMAN point-to-multipoint topology with one BS and ten GWs in the network. GW sent 180 packets in every one second to the BS. Figure 5.5 shows the simulation results in every one second for the WMAN topology. There are one BS and ten GWs in the network. GW sent 180 packets in every one second to the BS. There are 1,800 UDP packets sent to the BS in every second. The number of received packets are not exactly equal the number of sent packets in every second. The difference between them is between -5 and 5 packets. If a packet does not arrive in the same second, it will arrive in the next second. The average delay of a packet that is about 5.5 milliseconds, can validate this hypothesis. We also see that, the total transmission delay converges to 930 milliseconds. Figure 5.6 - The simulation results for the WMAN topology. The number of GWs is assigned from the one to ten in the experiments to evaluate the changing of total processing delay at the GWs.