During my search i found your paper "A Density-Based Clustering Scheme for Wireless Sensor Networks"
http://link.springer.com/ chapter/10.1007%2F978-3-642- 24267-0_32
can anyone help me to understand what is the use of p join that the author calculate it.
the author said if node's density less than D( needed density in the network) , sure it will join with a cluster head
but in the other case , if node's density greater than D , what will happen for many nodes satisfying this condition???? how algorithm use the different values of p join
The authors of the paper are in better position to answer your questions. This is my own explanation:
The paper introduces a new Local Density [Di : Di indicates that how many nodes exist around node i. To compute Di, each node i broadcasts a discovery-packet to another nodes in its own transmission radius], which depends on the original density defined by LEACH protocol (i.e. D). Consequently, the authors changed also the probability for a node to become a CH (Cluster Head). Again, the new probability is an adjustment of the original probability as it a function of the density (D ; equation 3).
The new probability is then weighted by a coefficient (Alfa ) and multiplied by the division of (D/Di).
The NUMBER of potential CH candidates for a given round (lower p, different from capital P) will depend on the (T(i)) which in return is proportional to P (Probability).
If you need more clarification, I strongly advise you to contact directly the authors and they will definitely help you:
Good luck !
Density clustering are methods to group data in sets based on their spatial density distribution.
LEACH is a routing protocol based on energy.
You can see my publications to have some idea about clustering and data analysis in WSN.
Follow me sooner one of my works will be published using LEACH.
Please follow my paper titled "Improvement on LEACH Protocol of Wireless Sensor Network"
https://www.researchgate.net/publication/264551474_Improvement_on_LEACH_Protocol_of_Wireless_Sensor_Network
Data Improvement on LEACH Protocol of Wireless Sensor Network
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