In wireless sensor networks（ WSNs）

due to limited energy of node

in order to extend life cycle of the whole network

a kind of WSNs routing protocol based on genetic simulated annealing algorithm is proposed. Using the simulated annealing algorithm has strong local search ability and can converge in stabilize speed

overcome shortcomings of poor local search ability and easy to premature convergence of Genetic algorithm. The routing portocol fully considers residual energy of nodes in election of cluster head nodes

and according to energy loss of data forwarding in network and delay time to establish individual fitness function

using genetic simulated annealing algorithm to find the optimal path from cluster head nodes to base station. Simulation results show that

compared with other protocols

this method can not only balance remaining energy of each node

but also can effectively prolong the network life cycle and improve data transmission capability of network.