Patent ID: 8406325
Filing Date: 2013-03-26
Classification: H04L

Abstract:
1. A receiver used for an orthogonal frequency-division multiplexing (OFDM) system, comprising: a signal processing device receiving an OFDM symbol and processing the OFDM symbol according to the OFDM symbol and a carrier frequency offset compensation coefficient to generate a processed signal, wherein the OFDM symbol comprises pilots which have been hierarchically modulated and the processed signal comprises processed pilots; a signal analysis device collecting the processed pilots of the processed signal and detecting a carrier frequency offset to generate the carrier frequency offset compensation coefficient to the signal processing device according to the processed pilots and a plurality of target decision bit error rates; and a channel detection module detecting a channel response of the processed signal according to the processed pilots and compensating the processed signal to generate an output data, wherein the signal processing device comprises