Improved Scheduling Algorithm Using Dynamic Tree Construction for Wireless Sensor Networks

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Chapter 3.3 DESCRIPTION OF MODULES:
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3.3.1 Cluster formation of WSN:
WSN is to regularly collect information from the sensor node and transmit it to cluster head. The cluster heads are selected by using highest node weighting parameter. Cluster head is organized by the entire sensor node and keeps track of the information of all the sensor nodes. Once the Sensor node is deployed, they will keep operating until there is a discharge.
3.3.2 LEACH (LEACH Low Energy Adaptive Clustering Hierarchy ):
WSN is considered a dynamic clustering method. All the nodes can transmit enough power to reach to the base station and the nodes use power control. The LEACH This network is made up of nodes, which are called as cluster heads. The work of the cluster head is to gather the data from their nearest nodes and transfer it on to the sink node. The LEACH has two phases. They are set-up phase, steady-state phase. In set-up phase cluster heads are chosen. In steady-state the cluster heads are maintained. Every node could transmit data into the corresponding time-slot By single hop communication.
3.3.3 Generalized Self-Organized Tree Based Energy-Balance [GSTEB]:
In each round the sink node assigns a root node and coordinates its sensor nodes. Root node sends the time slot message to all the sensor nodes. These sensor nodes send its message in a round which contains the entire neighbor's information. If the sensor node doesn't receive the message means not in the range, so the sensor node moves to sleep state. Therefore a better balanced load is achieved compared with the protocols mentioned.
3.3.4 Initial Phase:
When initial Phase begins token analysis in random allocation. By using Distributed Self-Organization balanced clustering algorithm can divide into three phases. They are cluster head selecting phase, cluster building phase, cycle phase. In the cluster head selecting phase cluster head node broadcasts (Head-Message) through the token analysis.

Vaiyshnavi Perumal is working as a Lecturer in the Department of Computer Science and Engineering at University College of Engineering Panruti, Anna University, India. She has published and presented papers in international conferences and journals. Her areas of interest include Wireless Sensor Networks and Cloud Security.
Nithya Venkatachalam is working as a Lecturer in the Department of Computer Science and Engineering at University College of Engineering Panruti, Anna University, India. She has more than 5 publications in international journals and conferences as well as an international book. Her areas of interest include Wireless Security, Web Application Security and Database Management Systems.