The invention discloses a game theory-based
radio resource optimization method in an LTE-A
relay system. The method mainly resolves the problem of compromise between
system throughput and user fairness when relays are introduced to a
cell. The method comprises the steps that SINR values of all users in the
cell are calculated, whether the users are connected to a
base station or the relays is determined according to the SINR values of the users, the reachable
data rate and the minimum required rate of each user are calculated, the SINR
dispersity of each
micro cell is calculated, and the
cell balance index meeting
cell throughput maximization and user fairness optimization is obtained through the game theory. According to the game theory-based
radio resource optimization method, the SINR
dispersity of the users is used as the main parameter of fairness, and fairness of the users in the center of the cell and the users on the edge of the cell are improved obviously; the
throughput, the fairness and the game theory are combined, so that
system resources are used more effectively, the
throughput is maximized under the condition that the fairness is guaranteed, and whole performance of the system is enhanced.