2/15 LDPC 16- MODULATOR USING NON-UNIFORM 16-SYMBOL SIGNAL CONSTELLATION FOR LOW DENSITY PARITY CHECK CODEWORD WITH 2/15 CODE RATE AND METHOD USING THE SAME

摘要

A modulator and a modulation method using a non-uniform 16-symbol signal constellation are disclosed. A modulator using a non-uniform 16-symbol signal constellation according to an embodiment of the present invention includes: a memory for receiving a codeword corresponding to an LDPC code having a code rate of 2/15; and a processor that maps the codeword to 16 symbols of a non-uniform 16-symbol signal constellation in units of 4 bits.