ICTACT Journal on Communication Technology

G. Vasantha Suganthi ¹, E. Srie Vidhya Janani ¹

Affiliations
1 Department of Computer Science and Engineering, Anna University, Regional Centre, Madurai, IN

Abstract

In time critical Wireless Sensor Network to obtain optimality, predictability and reliability, Cluster Head selection plays a vital role. Optimal Cluster Head utilizes the limited energy in an efficient manner and hence network lifetime is maximized. Hence the work focuses on an optimal Residue Energy Based algorithm for Cluster Head Selection. In this algorithm, node with maximum residual energy and has good link quality is selected as a Cluster Head in each round of transmission. To predict whether all nodes, are able to complete its task within the given lifetime requirement, energy bounds are estimated and test will be conducted to check if all nodes are within the bounds or not. To decrease the probability of failure communication between Cluster Head and Mobile Sink, Mobile Agents and Gateway Node are deployed. By partitioning the network into segments, Multiple Mobile Agents are act as managers that collect data from Cluster Head and perform aggregation in parallel and forwards it to Gateway Node. Gateway is a high energy resource and acts as an interface between Mobile Agent and Mobile Sink. It performs overall aggregation and forward data to Mobile Sink. Mobile Sink periodically collects data from Gateway. The work focuses on determining optimized techniques to predict the lifetime of sensors and research on the impact of deploying high energy nodes to enhance energy conservation over the network.

Keywords

Cluster Head Selection, Energy Estimation, Energy Bounds, Mobile Agent, Route Planning, VCL.

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B. Nandhini ¹, E. Srie Vidhya Janani ¹

Affiliations
1 Department of Computer Science and Engineering, Anna University Regional Centre, Madurai, IN

Abstract

Wireless Sensor Network has wide range of applications in the field of networks. The sink nodes need to communicate effectively with other sensor nodes, for effective communication. The facts such as cluster size, energy and lifetime of the nodes should be considered to make the communication effective. While transmitting, the nodes are grouped in clusters with one head per cluster. The cluster, nearer to the sink nodes may run out of energy due to continuous utilization. So an intermediate node for communication is used, called as AGM node. The sensor nodes in the clusters, first send the information to their cluster head (chosen on the basis higher residual energy), the cluster head in turn sends the information to the AGM node whereas the AGM transmits it to the respective sensor node and vice versa. Selection of AGM among many nodes and the entire process is carried out on the basis of the maneuver algorithm, which has 6 phases like compact clustering, AGM selection, Interclustering, Load balancing and data distribution, Communication and replenishment and Reconcile algorithm. In this process the CH transmits data after eliminating redundancy in it. In case of massive damage, Reconcile algorithm is used for the efficient usage of available AGM nodes to regain from the relapsed network.

Keywords

Sink Nodes (SN), Cluster Head (CH), Agreed Upon Mediator Node (AGM), Mobile Sink (MS), Residual Energy.

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