Data aggregation load balancing method and system based on optimal multi-user detection

The invention discloses a data aggregation load balancing method and system based on optimal multi-user detection. The method comprises the following steps: deploying a GT receiver in a satellite constellation; constructing a channel model based on a satellite constellation, and adopting a random access mechanism in an MAC layer; the GT receiver receives wireless signals from a plurality of relay nodes; calculating a signal-to-noise ratio of a received signal of the GT receiver based on a channel model, and filtering wireless signals lower than a signal-to-noise ratio threshold; reconstructing information of each user from the filtered receiving signals by adopting an optimal multi-user detection algorithm; eliminating multiple access interference from other users in the reconstructed information of each user by adopting a parallel interference elimination technology; clustering the multi-user wireless signals of which the multiple access interference is eliminated by using a K neighbor classifier to form a s