a telecommunication network component , comprising : a memory configured to store instructions , and a processor configured to execute the stored instructions , the instructions comprising : determining a plurality of power allocation adjustments for signals transmitted via an antenna array that promotes decision - feedback detection without using channel state information , and outputting the power allocation adjustments to the array . also disclosed is a power allocation method comprising : determining a power allocation scheme that promotes decision - feedback detection in a multiple - input and multiple - output system without using channel state information , and implementing the power allocation scheme on an antenna array by modifying an adjustment for each of a plurality of antennas in the array .