Performance Analysis of Wireless Sensor Networks for Different Speeds of Sink and Sensor Nodes

Wireless Sensor Networks (WSNs) have become a hot research topic in academia as well as in industry in recent years due to its wide range of applications ranging from medical research to military. In this paper, we study the effect of mobile sink and mobile sensors in WSN performance. The WSNs should allow a systematic deployment of sensor nodes including mobility among the sensor nodes. The disseminated data from the sensor nodes are gathered at the sink node. Data dissemination is the major source for energy consumption in WSNs. We consider as evaluation parameters, goodput, depletion and Routing Efficiency (RE) to evaluate the performance of WSNs considering different speeds of mobile sink and sensor nodes. The simulation results show that when the network is not congested, the goodput when sink and sensor nodes move with 10m/s, is higher than the case when they move at 5m/s. Depletion is higher for higher values of the sink and sensor nodes speed and RE is higher for 5m/s moving speed.