K. Sravan abhilash, Dr. Hemant Khurana, Dr.D. Subba Rao
Abstract
The power supplies of wireless sensor networks for nodes haven’t been rechargeable because of environmental factors. It makes the challenge for WSNs to achieve the energy efficiency and prolong the lifetime of a network. Most of the sensor energy consumes by the data transmission in WSNs that affects the network lifetime. To reduce the communication protocols’ impact on the overall consumption of energy in a network, different types of mechanisms have been proposed. After partitioning a network into clusters with the use of low-energyadaptiveclusteringhierarchy(LEACH),somenodeshavebeenselectedascluster head (CHs) randomly and CH role is rotated among nodes for even distribution of energyload across the network. A novel modified routing protocol is proposed in this paper for improvement of energy efficiency in WSNs. This new improved energy adjusted LEACH (EA-LEACH) protocol has been considered the nodes’ residual energy and their average energies. To get the decreased consumption of energy among sensor nodes, EA-LEACH protocol doesn’t involve the nodes in the formation of a cluster when they are nearer to theBS (Base Station) and considers the optimal CHs. Accordingly, the improved delay PSO (DPSO)is used in the data transmission phase to be selected the efficient relaynode based on the consideration of node cost and end-to-end delay for sustaining the energy efficiency across the network. The simulation results are analyzed and proved that the better performance in energy efficiency, network lifetime, and communication quality with the proposed method.
The random numbers are considered to select the Cluster Heads (CHs) in case ofconventional LEACH protocol. It may lead to the causing of earlier death for nodes, which having lower residual energy due to the similar priorities given for all nodes to be a cluster head irrespective of their residual energies. To overcome this limitation, a novel modified routing protocol is proposed, i.e. improved energy adjusted LEACH (EA-LEACH) protocol, which takes into account the residual energy of nodes and their average energies. The proposed EA-LEACH protocol is accounted for optimal CHs and not allowing the nodes to participate in the cluster creation when they are much closer to the BS. The improved PSO (DPSO) utilizes to select the efficient relay node and enhance the energy efficiency duringthe transmission of data that results in minimized and balanced energy consumption. Toselect the relay node efficiently, the node cost and end-to-end delay are the significant parameters for DPSO. The better performance is achieved with the proposed technique based on the simulation results for communication quality, consumption of energy, and network lifetime.
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How to Cite This Paper
K. Sravan abhilash, Dr. Hemant Khurana, Dr.D. Subba Rao (2020). An Energy efficient LEACH protocol and optimal relay selection in Wireless Sensor networks. International Journal of Computer Techniques, 7(1). ISSN: 2394-2231.
