Power control method for interference alignment in wireless network

A power control method for interference alignment in wireless network having K transmitters and K receivers, the method comprising:

• receiving, performed by a receiver n (n is an integer, 1≦n≦K−2), information for transmission power and quantized precoding vector of transmitter n+1 from transmitter n+1;
• determining, performed by the receiver n, a precoding vector of a transmitter n+2;
• calculating, performed by the receiver n, a residual interference based on the quantized preceding vector of transmitter n+1 and a quantized preceding vector of transmitter n+2, and a transmission power of the transmitter n+2;
• and
• transmitting, performed by the receiver n, the quantized preceding vector of transmitter n+2 and information for the transmission power of the transmitter n+2 to the transmitter n+2.