ADAPTIVE INTERFERENCE ALIGNMENT METHOD FOR TIME-VARYING MULTIUSER MIMO INTERFERENCE CHANNELS

摘要

PURPOSE: An adaptive interference alignment method for time-variable multiuser MIMO interference channels is provided to estimate the channel of an uplink based on an estimated channel. CONSTITUTION: A first DL(DownLink) channel is estimated, and a repeated least square method is used to calculate a beam forming vector. When the channel does not vary much, an intrinsic value, an intrinsic vector and a new beam-forming vector are calculated through the first DL channel. If the channel varies much, a new beam-forming vector is acquired based on a predicted channel.