Patent ID: 8687749
Filing Date: 2014-04-01
Classification: H04L

Abstract:
1. A mobile Orthogonal Frequency Division Multiplex (OFDM) receiver, comprising a receiving unit for receiving a multicarrier signal via a transmitting channel, a channel estimation unit for estimating a channel estimation signal indicative of properties of the transmitting channel based on the multicarrier signal and a feedback provided at a position of a signal processing path of the receiver downstream of the channel estimation unit, and a compensation unit adapted for at least partially compensating signal distortions within the transmitting channel based on the multicarrier signal received by the receiving unit and the channel estimation signal estimated by the channel estimation unit, and for outputting the received multicarrier signal with at least partially compensated signal distortions, the compensation unit comprising an intercarrier interference subtraction unit for subtracting intercarrier interferences from the received multicarrier signal and a further unit for computing a reliability of the multicarrier signal using a log-likelihood ratio scheme, wherein the further unit is configured to compute a log-likelihood ratio of the multicarrier signal using remaining intercarrier interferences and noise power.