MULTIPLE-INPUT MULTIPLE-OUTPUT COMMUNICATION SYSTEM USING EXPLICIT FEEDBACK

摘要

PURPOSE: A multiple-input/output communication system using an explicit feedback is provided to share an explicit channel matrix through a vectorization. CONSTITUTION: A channel estimator(720) calculates explicit channel matrix between a transmitter and a receiver. A vectorization unit(730) vectorizes the explicit channel matrix or a processed the explicit channel matrix through a predetermined function in order to generate an explicit feedback vector. A feedback information generator(740) generates feedback information using a predetermined code book and the explicit feedback vector. The predetermined code book includes a plurality of code words as candidates for the explicit feedback vector.