METHOD AND A DEVICE FOR DISTRIBUTING POWER IN AN OFDM SYSTEM USING LIMITED FEEDBACK INFORMATION

摘要

PURPOSE: A method and a device for distributing power in an OFDM system are provided to effectively performs a power allocation per subcarrier in a transmitter through small feedback information.;CONSTITUTION: A receiver measures the size of receive power per subcarrier from a receiving signal(302). The receiver arranges subcarrier channel coefficient values in order of the value form biggest value to smallest value(304). The receiver executes grouping about the arranged channel coefficient values(306). Each group of channel coefficient values is mapped on one-to-one materially to subcarrier index. The receiver feedbacks a group index per subcarrier to transmitter through return channel(308).;COPYRIGHT KIPO 2010