METHOD OF TRANSMITTING PILOT SIGNAL FOR DFT SPREAD ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS SYSTEM

摘要

A method of transmitting pilot bits in a DFT spread OFDMA system is provided to easily control an electric power by allocating and transmitting subcarriers which are positioned in a specific range without spreading the pilot bits. A method of transmitting pilot bits in a DFT(Discrete Fourier Transform) spread OFDMA(Orthogonal Frequency Division Multiple Access) system includes spreading symbol for transmission of data, except for the pilot bits, through DFT matrix. The spreaded symbol is mapped to subcarriers. The subcarriers are arranged at regular intervals in a frequency region.