Method for selecting optimal distributed type interference source in mobile collaborative network

The invention relates to the technical field of mobile communications and provides a method for selecting an optimal distributed type interference source in a mobile collaborative network. In the method, the possible states and the state transition probability of candidate collaborative nodes are obtained through periodically transmitting a training sequence and feedback information; whether a channel source node can be in direct communication with a destination node is judged, if the direct communication is available, the selection of the optimal interference node is carried out, or else, the selection of an optimal relay-interference pair is carried out; and a corresponding priority symbol value of each possible state of the collaborative nodes is calculated, and a suitable node is selected to collaborate data transmission. With the adoption of the method provided by the invention, the optimal interference source can be selected according the specific states of a channel, so as to respond to the interception of illegal nodes in the mobile collaborative network, the power consumption and the transmission error rate of the collaborative nodes are sufficiently considered at the same time that the secure communication is guaranteed, and the quality of communication is ensured.