Amplification relay power control of the forward relay system and method

The relay power control apparatus and method are disclosed. The relay power control device of the present invention and the channel information and the relay between the signal receiver, the source and the relay which receives a signal transmitted by a plurality of receive antennas, either directly or through one or more relay (relay) from the source (source) channel information obtaining unit to obtain channel information between the reception antennas, the above-obtained channel information and the maximum signal-to-noise ratio (SNR) to the the basis of the power control power control for generating a signal the signal generator and the generated power control signal characterized in that it transmits to the relay includes a relay power controller for controlling transmission signal power for the relays. Therefore, it is possible to improve the receiving diversity. Relays, SNR, power control, the receive mode