METHOD AND APPARATUS OF SUCCESSIVE INTERFERENCE CANCELLATION DETECTION IN MULITIPLE INUPUT MULTIPLE OUTPUT ANTENNA SYSTEM

摘要

The present invention relates to wireless communications and, more in detail, to a method and an apparatus for detecting successive interference cancellation (SIC) in a multi-input and multi-output antenna system. The method of the present invention comprises the steps of: receiving a MIMO transmission signal; detecting a transmission symbol including a channel noise component; decoding the transmission symbol including the channel noise component and acquiring bit information; detecting the SIC based on the bit information; inserting a noise into an SIC detected value; compensating a channel gain; and performing maximum ration combination (MRC) based on the SIC detected value of which the channel gain is compensated, wherein the step of compensating the channel gain includes an operation of dividing the SIC detected value with the noise inserted by a variance value of the sum of the channel noise and the inserted noise.