Aiming at energy heterogeneous wireless sensor networks（WSNs）

a new energy distribution-based uneven clustering routing algorithm（EDUCRA）is proposed.In this algorithm

the node near the sink communication with sink directly

and cluster heads use uneven competition ranges to construct clusters of uneven sizes.The results of the simulation on OMNet++ platform show that the algorithm can balance network energy consumption

improve utilization efficiency of node energy and prolong network lifetime.