Placement of optimized number of wireless sensor nodes to design an efficient monitoring network
Somesh Ganguly, Sribas Mondal, Arnab Ghosh, Gargi Konar, Niladri Chakraborty · 2017
Wireless sensor networks have come into recognition nowadays as the potential monitoring tool for all remote systems. The deficiencies of the wired networks has somewhat been eliminated by the wireless networks but still some limitations exist. Often the wireless nodes become dead when battery power is exhausted and data is lost due to interferences. This work aims to design a reliable architecture where the optimum number of routers and their best suited position are determined with the help of Cultural Algorithm (CA). This will help to develop a reliable data communication pathway with minimum amount of interferences among the sensor nodes. Four sensors are placed initially to collect data from four different sources while the position of the control station has been fixed. The results obtained from optimization have been used for hardware implementation of the wireless network in a physical environment in Power Engineering Department of Jadavpur University, Saltlake Campus, Kolkata. The routers are placed as per the positions obtained from the optimization. Thus, a reliable path with optimum number of routers is obtained. CA has been implemented with the novel idea of considering the drawbacks of wireless network such as signal overlap and complete coverage of the sensor nodes as the constraint functions. The data from the sensors are continuously being monitored in the control station through this network. Reliable communication through newly deployed nodes justifies the result obtained from CA. This model would help to deploy routers in applications involving large number of sensors to form a less congested wireless network.