In order to improve the accuracy of distributed consensus algorithms under quantization communication, a modified probabilistic quantization distributed consensus algorithm was proposed based on the probabilistic quantization distributed consensus algorithm. In the proposed algorithm, states of nodes were updated by itself states and the probabilistic quantization values of the adjacent nodes. The convergence performance and the mean square error of the modified probabilistic quantization distributed consensus algorithm were analyzed and calculated. The results showed that the accuracy of modified probabilistic quantization distributed consensus algorithm is improved dramatically.
