TRANSMITTER, RECEIVER, DIGITAL BROADCASTING SYSTEM, AND CHIP

摘要

PROBLEM TO BE SOLVED: To provide a transmitter, a receiver, a digital broadcasting system, and a chip, capable of improving reception characteristics in a case where a symbol representing an odd bit is mapped on an IQ plane.SOLUTION: A transmitter 10 includes a mapping part 14 that maps a symbol representing an odd bit on an IQ plane by using an ideal symbol coordinate defined on the IQ plane. The ideal symbol coordinate is optimized in accordance with a predetermined coding rate.