Data forwarding method based on random walk backup and node cooperation

The invention discloses a data forwarding method based on random walk backup and node cooperation, mainly solving the problems of high cost, low universality and difficult practical application of the traditional survivable technology. Characteristics of communication of a wireless sensor network are fully considered in the method, in a data perceptual stage, nodes needing to execute a data backup strategy are selected, data perceived by the nodes are backed-up through random walk of the data among the nodes, so that the survivability of the network is improved; and in a data transmission stage, the nodes of the sensor broadcast a packet with a data bit zone of 1 in a storage and calculate the data bit zone of the packet in the storage so as to realize cooperative forwarding of the data, reduce additional data transmission quantity caused by data backup and lower average path length of the network. The invention has the characteristics of high survivability, good universality, simplicity for realization and l