Patent ID: 7424072
Filing Date: 2008-09-09
Classification: H04L

Abstract:
1. A receiver for receiving a frequency division multiplex (FDM) transmission signal which is produced by plural carrier signals generated at various frequencies within a transmission band being modulated with information signals which are assigned to the plural carrier signals, respectively, said receiver comprising: a reference value calculation unit for estimating transmission characteristics based on the received FDM transmission signal, and calculating a reference value based on an average electric power of the transmission characteristics; an interference detection unit for detecting the degree of influence by frequency selective interference, as an interference level, based on the received FDM transmission signal; a reliability determination unit for determining a reliability level of the carrier signals that constitute the received FDM transmission signal based on the reference value and the interference level; and an error correction unit for performing error correction of the received FDM transmission signal based on the determined reliability level.