APPARATUS AND METHOD FOR ZERO-FORCING BEAMFORMING IN DISTRIBUTED MIMO SYSTEM

摘要

PURPOSE: A device and a method for zero-forcing beam forming in a distributed MIMO system are provided to maximize transmission capacity in consideration of the maximum power limit condition per a base station during downlink transmission of a ZF beam forming mode. CONSTITUTION: A power allocation unit(306) allocates power to transmission data in consideration of a maximum power condition per a base station. A precoder(308) performs zero-forcing beam forming to transmit the transmission data to which the power is allocated. A channel information matrix feedback receiver(300) receives channel information matrices from terminals. A transmission mode determiner(302) calculates a power allocation coefficient vector.