In order to solve the problem of unbalanced energy consumption of wireless sensor networks

in this paper

we propose an energy balance adaptive routing algorithm based on Ant Colony Optimization(ACO).It takes energy density of the node into the heuristic factor and utilizes the dynamic adaptability of ants to find the optimal path

balancing energy consumption of the whole network.Simulation results show that

comparing with the LEACH algorithm

it balances energy consumption of the whole network and avoids the problem of network partition or the "energy hole" phenomenon effectively and extends the network lifetime effectively.