• S ANURADHA
• Dr. D. SREENIVASA RAO

Wireless Sensor Networks (WSNs) include numerous nodes that can be used to collect the data from different environments. The major challenging issue is consumption of more energy in WSNs. Recharging of sensor nodes is not possible as the sensor operates based on battery. Hence, each sensor node lifetime and energy consumption are the main problems of wireless sensor networks. For improving the battery lifetime and balancing the energy consumption of sensor nodes, various existing clustering protocols have proposed. But, these protocols result in the excessive overhead owing to the repeated clustering and higher power consumption. Thus, the communication disrupts as the cluster heads fail unprecedentedly. In WSNs, it’s essential to handle such fault cluster heads and required to provide an alternate solution for data communication. A dynamic and distributed dual cluster head election algorithm (PCH- Proxy CH; MCH – Main CH) is proposed based on two-level clustering scheme and fault tolerance capabilities. The delay-energy-trade-off (DET)& the residual energy of the node are taken into account for dual CH selection.The role of cluster head is played by PCH automatically when MCH is failed in communication after detecting the current cluster head failure. For choosing an efficient relay node, the delay constrained PSO (DCPSO) is used that leads to the balancing and minimization of energy consumption. To achieve an efficient relay selection, end-to-end delay and cost of a node are considered for DCPSO. The proposed technique DCH-DCPSO is showed superior performance than the existing methods based on the analyzation of simulation results.

WSN, PSO, Relay node, Cluster head, Fault tolerance, Delay.

"FTDCH-DCPSO – A fault tolerant dual CH selection mechanism with delay constrained particle swarm optimization for energy balancing", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.8, Issue 7, page no.e920-e928, July-2021, Available :http://www.jetir.org/papers/JETIR2107622.pdf

"FTDCH-DCPSO – A fault tolerant dual CH selection mechanism with delay constrained particle swarm optimization for energy balancing", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.8, Issue 7, page no. ppe920-e928, July-2021, Available at : http://www.jetir.org/papers/JETIR2107622.pdf