Apparatus and method for receiving signal in a communication system

摘要

An apparatus and method is provided for receiving a signal in a communication system. The signal reception apparatus includes a receiver for receiving a signal, and a decoder for decoding the received signal according to a Low Density' Parity Check (LDPC) decoding scheme. The LDPC decoding scheme includes check node calculation at a particular check node so as to reuse calculation values of some check node calculations among the check node calculations necessary for receiving at the check node messages from all variable nodes connected to the check node and outputting messages to all of the variable nodes connected to the check node.