LOW DENSITY PARITY CHECK ENCODER USING COSTAS ARRAY, AND CHANNEL ENCODER OF HIGH SPEED PORTABLE INTERNET SYSTEM COMPRISING THE SAME AND CHANNEL ENCODING METHOD

摘要

The present invention provides an LDPC encoder, a channel encoder of a portable internet system including the LDPC encoder, and an encoding method thereof. The LDPC encoder according to the present invention generates a Costas array, shifts it, generates an analogous circulation parity check matrix having a repeated pattern from the shifted Costas array, and performs encoding by using the parity check matrix. With this LDPC encoder, complexity of encoding system may be reduced.