APPARATUS AND METHOD FOR DETECTING MAXIMUM LIKELIHOOD, RECEIVER AND COMMUNICATION SYSTEM EMPLOYING THE SAME

摘要

The present invention relates to an apparatus and a method for detecting a maximum likelihood, and a receiver and a communications system using the same. According to an embodiment of the present invention, the apparatus comprises a maximum likelihood candidate symbol detection unit configured to determine a symbol having a diagonal element, which is a positive number among symbols presumed to a transmission symbol matrix, using information on a reception symbol and channel, wherein the diagonal element is in a predetermined determination equation matrix; and a maximum likelihood detection unit configured to decide the transmission symbol by detecting a symbol corresponding to the maximum likelihood among the determined symbols.