Abstract:

In order to balance energy consumption of WSN (Wireless Sensor Network), a multi-hop unequal clustering routing protocol, ECBUC (Energy Consumption Balanced Unequal Clustering), was put forward. By adopting an energy factor in the primary stage of cluster-head selection, the possibility of high-energy node being elected increased. Using competition algorithm in clustering stage, the network area was divided into unequal area and the “hot spots冶problem of wireless sensor network could be improved. When building a routing between clusters, ECBUC considered the relative position and residual energy of the intermediate nodes. It could coordinate the communication cost between clusters and the energy distribution of the network. Experimental results show that compared with EEUC (Energy Efficient Uneven Clustering) the ECBUC protocol greatly prolongs the lifetime of network by an average of 22. 29%, and balances the network energy consumption.

Key words: wireless sensor networks, balanced energy consumption, unequal clustering, residual energy, node position