Aiming at water environment monitoring of three Gorges Reservoir

banded large-scale wireless sensor networks（ WSNs） is used which apply game theory and optimization algorithms to research on problem of node localization

optimization algorithm model for node localization is established

basic principle of model

feasibility and specific realization method are analyzed. Through node localization simulations experiment on different distribution status networks

positioning effect of algorithm on square

banded

strip randomly distributed sensing networks are tested. Experimental results show feasibility and high efficiency of this algorithm

it can improve localization precision and nodes coverage rate without additional hardware overhead and has fast convergence speed.