(IEEE, 2010-09-06) De Silva, H. J; Gamwarige, S; Kulasekere, E. C
One of the most important aspects in a clustering
algorithm in a wireless sensor network is the cluster head
(CH) rotation mechanism. Global reclustering is the common
and established method used for this purpose in many existing
algorithms. This research proposes an analytical framework
to investigate the average energy expenditure of the global
reclustering method and a local delegation strategy in which the
CH role is delegated to a member of the cluster without changing
the initial cluster boundary. Further we investigate a strategy
of partial local delegation within global reclustering rounds to
achieve energy efficiency. Simulations are used to visualize the
analytically derived results using the simulation environment
MATLAB.
