Synchronisation of the local oscillator in multicarrier systems

摘要

An OFDM transmission system for communicating an OFDM signal (Vmo1) generated from a complex vector data (Vms) comprised of predetermined number of data symbols (DS) therein. An OFDM modulating apparatus (MP) is provided for generating the OFDM signal (Vmo1) comprised of reference symbol (RS) indicative of phase information inserted therein at a predetermined number (N-1)of symbols (DS). An OFDM demodulating apparatus (DP) is also provided for demodulating the OFDM signal (Vmo) based on the reference symbol (RS) inserted that OFDM signal (Vmo).