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Increasing Life Time of Wireless Sensor Networks

Amiri, Zahra | 2018

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  1. Type of Document: M.Sc. Thesis
  2. Language: English
  3. Document No: 50495 (52)
  4. University: Sharif University of Technology
  5. Department: Science and Engineering
  6. Advisor(s): Hemmatyar, Afshin; Hajsadeghi, Khosro
  7. Abstract:
  8. A large number of sensors are spread for monitoring of an area in a random manner. The aim is to have an efficient design for energy that can protect the coverage of the area. A number of sensor nodes that have high density and which are in the area have the duty of monitoring of the area. The aim of this process is to determine of maximum number of separate collections that they have a direct influence upon the life span of the network. The idea behind this approach is that the nodes in areas with low availability are less used as a data routing as well as nodes that have remaining energy. In order to reach this objective, the importance of each sensor node for its duty of protecting coverage is measured by informed cost criterion coverage. To ensure the balanced energy use between head cluster nodes in the entire life span of the network, many clustering protocols have distributed clusters in a non-uniform manner with the average size of stable cluster. Nodes can support clusters with more members, while exorbitant consumption of energy of nodes of head clusters of these groups make them fail before other groups. Their death should not affect the coverage of network, while these nodes are located in crowded areas. The presented method takes into the account the applications, which are needed for the total coverage of the network. In order to avoid this situation one clustering is provided which is called clustering protection coverage protocol (CPCP). CPCP consists of six stages:1- Updating information 2- Choosing head clusters 3- Updating route 4- Cluster formation 5- Sensor activation 6- Data connections. The presented method is implemented on CPCP algorithm and it is called CPCP-a, which consists of two phases which first phase consist of six stages: 1- Updating information 2- Choosing head clusters 3- dating route 4- Cluster formation 5- Sensor activation 6- Data connections. In the second phase the above-mentioned stages are carried out in sink, so as to increase the accuracy of algorithm by using the topology of network
  9. Keywords:
  10. Energy Consumption ; Coverage ; Wireless Sensor Network ; Extention Life Time ; Disable Nodes

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