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Clustering sensor nodes is an effective topology control for increasing network lifetime and scalability. It also, balances the load on the sensor nodes. HEED is a well known distributed clustering protocol that uses both energy and communication cost to elect Cluster Heads (CHs) in a probabilistic way. This paper improves HEED protocol using fuzzy logic and a non probabilistic approach for CH election...
In designing of the routing protocols for Wireless Sensor Networks, clustering is one of the methods used to manage network energy consumption efficiently. LEACH is one of the most famous clustering mechanisms. It elects a cluster head based on probability model. In LEACH, within each 1/p rounds, once a node has been selected as a cluster-head (CH), its threshold will be set to 0, and thus it will...
The most important issue in designing a data gathering algorithm is how to save energy of sensor nodes while meeting the requirement of application such as sensing are coverage. On the other hand, in the real applications, it is unrealistic to guarantee all sensors have the same energy because they have different energy consumption. In this paper, A cluster based data gathering protocol for heterogeneous...
To reduce energy consumption is an important topic in WSN (wireless sensor networks). One of the popular protocols for energy-efficient WSN is called LEACH (low-energy adaptive clustering hierarchy) which is a clustering algorithm designed for homogeneous WSN. Since LEACH selects the cluster heads based on probability, the real and expectance number of cluster heads may be different. However, LEACH...
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