DATA TRANSMITTING/RECEIVING METHOD USING PHASE TRANSITION-BASED PRECODING AND TRANSMITTING/RECEIVING DEVICE FOR ASSISTING THIS METHOD

摘要

PROBLEM TO BE SOLVED: To make the design of a transmitting/receiving device simplified and its communication efficiency improved by generalizing or expanding a phase transition-based precoding technique.SOLUTION: A method for transmitting and receiving data by using phase transition-based precoding generalized in a MIMO system using a plurality of subcarriers or by using expanded phase transition-based precoding, and a transmitting/receiving device for assisting the method are disclosed. A phase transition-based precoding matrix may be generalized by a scheme of multiplying a diagonal matrix for phase transition by a unitary matrix for maintaining orthogonality among the subcarriers, where the diagonal matrix part may be expanded by a scheme of multiplying a precoding matrix for cancelling interference among the subcarriers by the diagonal matrix for phase transition. Through generalization and expansion of a phase transition-based precoding technique, the design of the transmitting/receiving device can be simplified and its communication efficiency can be improved.