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What is Number of Clusters

Chapter 13
Handbook of Research on Advanced Trends in Microwave and Communication Engineering
A pre-request for the almost clustering algorithms. They are based on minimizing the objective function. The number of clusters is an indicator of the quality of the cluster results. The cluster results should be more separated and more compacted. From the energy dissipation point view, the number of clusters affect on the network life time. The large number of clusters increases energy consuming in the multi hop communication. The small number may reduce energy consuming but the high network density can have opposite effect on the network life time. So the determination of the number of clusters is demand for the cluster routing protocols.
Published in Chapter:
Adjust Fuzzy Model Parameters for Head Election in Wireless Sensor Network Protocols
Walaa Abd el Aal Afifi (ISSR-Cairo University, Egypt) and Hesham Ahmed Hefny (ISSR-Cairo University, Egypt)
Copyright: © 2017 |Pages: 23
DOI: 10.4018/978-1-5225-0773-4.ch013
Abstract
The clustering routing protocols attract many research papers that result from their well topology control, less demand resources, and less energy dissipation. The cluster routing protocols consist of single hop communication and multi hop communication. Single hop is applied between sensor node and its related cluster head. Multi hop is applied between cluster heads to base station. The previous two communication modes depend on the cluster head election. Appropriate cluster-head election can drastically reduce the energy consumption and enhance the lifetime of the network. The fuzzy models are used frequently for cluster head election. The fuzzy models can be built either expert's knowledge or numerical data. The authors propose fuzzy model using adaptive Takagi-Sugeno for wireless sensor network protocol (FATSN). The FATSN protocol is implemented by modified merging algorithm of fuzzy clustering with expected value (MCFEV). The FATSN protocol compares with the famous cluster routing protocol LEACH, EEUC, CHEF, and FCM protocols. The results show that FATSN protocol is efficiency
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