Optimal cluster head selection and rotation of cognitive wireless sensor networks for simultaneous data gathering and long life system
Simultaneous data gathering is an application that exploits the unique advantages of wireless sensor networks. Because many sensor nodes access a channel, co-channel interference limits the number of nodes who can access it. To suppress co-channel interference, a frequency spectrum (or channel) is r...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Hindawi - SAGE Publishing
2017-12-01
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| Series: | International Journal of Distributed Sensor Networks |
| Online Access: | https://doi.org/10.1177/1550147717747859 |
| _version_ | 1797763191067901952 |
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| author | Osamu Takyu Shohei Fujii Youhei Akimoto Mai Ohta Takeo Fujii Fumihito Sasamori Shiro Handa |
| author_facet | Osamu Takyu Shohei Fujii Youhei Akimoto Mai Ohta Takeo Fujii Fumihito Sasamori Shiro Handa |
| author_sort | Osamu Takyu |
| collection | DOAJ |
| description | Simultaneous data gathering is an application that exploits the unique advantages of wireless sensor networks. Because many sensor nodes access a channel, co-channel interference limits the number of nodes who can access it. To suppress co-channel interference, a frequency spectrum (or channel) is required to obtain large diversity and spreading gains. Cognitive radio with transmit power control exploits available channels because, in this approach, the co-channel interference on the primary system is suppressed and spectrum sharing between the primary system and a secondary system is possible. Prolonging a node’s life is also important in wireless sensor networks. However, in simultaneous data gathering, the power consumed by the relay station (cluster head) is quite high. In this article, a method for constructing a cluster head selection and rotation that is optimal for increasing the number of available channels and prolonging the life of the node is proposed. In simultaneous data gathering, the link with the minimum number of available channels is the bottleneck. Our proposed technique achieves the maximum number of available channels and extends the life of the nodes because of the cluster head rotation. In addition, the optimal number of clusters is also determined. |
| first_indexed | 2024-03-12T19:38:03Z |
| format | Article |
| id | doaj.art-0c71781f3c5e477d89015d16e791e4d3 |
| institution | Directory Open Access Journal |
| issn | 1550-1477 |
| language | English |
| last_indexed | 2024-03-12T19:38:03Z |
| publishDate | 2017-12-01 |
| publisher | Hindawi - SAGE Publishing |
| record_format | Article |
| series | International Journal of Distributed Sensor Networks |
| spelling | doaj.art-0c71781f3c5e477d89015d16e791e4d32023-08-02T03:59:22ZengHindawi - SAGE PublishingInternational Journal of Distributed Sensor Networks1550-14772017-12-011310.1177/1550147717747859Optimal cluster head selection and rotation of cognitive wireless sensor networks for simultaneous data gathering and long life systemOsamu Takyu0Shohei Fujii1Youhei Akimoto2Mai Ohta3Takeo Fujii4Fumihito Sasamori5Shiro Handa6Faculty of Technology, Department of Electrical & Computer Engineering, Shinshu University, Nagano, JapanFaculty of Technology, Department of Electrical & Computer Engineering, Shinshu University, Nagano, JapanFaculty of Technology, Department of Electrical & Computer Engineering, Shinshu University, Nagano, JapanFukuoka University, Fukuoka, JapanThe University of Electro-Communications, Tokyo, JapanFaculty of Technology, Department of Electrical & Computer Engineering, Shinshu University, Nagano, JapanFaculty of Technology, Department of Electrical & Computer Engineering, Shinshu University, Nagano, JapanSimultaneous data gathering is an application that exploits the unique advantages of wireless sensor networks. Because many sensor nodes access a channel, co-channel interference limits the number of nodes who can access it. To suppress co-channel interference, a frequency spectrum (or channel) is required to obtain large diversity and spreading gains. Cognitive radio with transmit power control exploits available channels because, in this approach, the co-channel interference on the primary system is suppressed and spectrum sharing between the primary system and a secondary system is possible. Prolonging a node’s life is also important in wireless sensor networks. However, in simultaneous data gathering, the power consumed by the relay station (cluster head) is quite high. In this article, a method for constructing a cluster head selection and rotation that is optimal for increasing the number of available channels and prolonging the life of the node is proposed. In simultaneous data gathering, the link with the minimum number of available channels is the bottleneck. Our proposed technique achieves the maximum number of available channels and extends the life of the nodes because of the cluster head rotation. In addition, the optimal number of clusters is also determined.https://doi.org/10.1177/1550147717747859 |
| spellingShingle | Osamu Takyu Shohei Fujii Youhei Akimoto Mai Ohta Takeo Fujii Fumihito Sasamori Shiro Handa Optimal cluster head selection and rotation of cognitive wireless sensor networks for simultaneous data gathering and long life system International Journal of Distributed Sensor Networks |
| title | Optimal cluster head selection and rotation of cognitive wireless sensor networks for simultaneous data gathering and long life system |
| title_full | Optimal cluster head selection and rotation of cognitive wireless sensor networks for simultaneous data gathering and long life system |
| title_fullStr | Optimal cluster head selection and rotation of cognitive wireless sensor networks for simultaneous data gathering and long life system |
| title_full_unstemmed | Optimal cluster head selection and rotation of cognitive wireless sensor networks for simultaneous data gathering and long life system |
| title_short | Optimal cluster head selection and rotation of cognitive wireless sensor networks for simultaneous data gathering and long life system |
| title_sort | optimal cluster head selection and rotation of cognitive wireless sensor networks for simultaneous data gathering and long life system |
| url | https://doi.org/10.1177/1550147717747859 |
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