Abstract:

The existing hierarchical approaches for sensor networks do not focus on the energy consumption during the role rotations. And the duration of a roundis a priori, which is very applicatiorrspecific. This paper puts forward an adap- tive minimum rotational cost （AMRC） energy-efficient cluster format  tion strategy. The cluster head adaptively decides whether to begin a new round only by its own energy state. It guarantees the role rotation of each cl  uster is independent and will not affect any other clusters by setting the connectivity subset. The simulation results demonstrate AMRC outperforms some  other clustering protocols in the number of role rotations and the energy consumption.

Key words: sensor network, hierarchical architecture, role rotation, adaptive minimum rotational cost