Coded OFDM system using error control coding and cyclic prefix for channel estimation

摘要

An apparatus for demodulating a coded orthogonal frequency division multiplexing (OFDM) signal in a coded OFDM receiver. The coded OFDM signal comprises systematic bits, error control bits, and a cyclic prefix. The apparatus performs channel estimation quickly and accurately using the error control bits, the channel spread constraint, and the cyclic prefix portion of the received coded OFDM signal.