A radio transmission and reception system includes a first antenna, a second antenna, a RF module and a controller module. The first antenna receives the first data, and the second antenna receives the second data; the RF module is coupled to the first antenna and the second antenna, and transmits the first data and the second data; the controller module includes a flux module, a signal deviance module and an antenna assignation module. The flux module is coupled to the RF module to determine the first flux and the second flux based on the first data and the second data. The signal deviance module is coupled to the RF module to estimate the first signal deviation between the first data and the reference data and the second signal deviation between the second data and the reference data. The antenna assignation module is coupled to the flux module and the signal deviation module for receiving antenna among the first and the second antennas, based on the first and the second throughputs, and the first and the second signal deviation.