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Registered MODULATOR AND MODULATION METHOD USING NON-UNIFORM 16-SYMBOL SIGNAL CONSTELLATION FOR LOW-DENSITY PARITY CHECK CODEWORD HAVING 2/15 CODE RATE
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MODULATOR AND MODULATION METHOD USING NON-UNIFORM 16-SYMBOL SIGNAL CONSTELLATION FOR LOW-DENSITY PARITY CHECK CODEWORD HAVING 2/15 CODE RATE
- Inventors
- Kwon Sun Hyoung, Sung Ik Park, Lee Jae-Young, Heung Mook Kim, Namho Hur
- Application No.
- 14618923 (2015.02.10)
- Publication No.
- 20150229328 (2015.08.13)
- Registration No.
- 9543982 (2017.01.10)
- Country
- UNITED STATES
- Project Code
- 14MR9100, Development of Service and Transmission Technology for Convergent Realistic Broadcast, Namho Hur
- Abstract
- A modulator and a modulation method using a non-uniform 16-symbol signal constellation are disclosed. The modulator includes a memory and a processor. The memory receives a codeword corresponding to a low-density parity check (LDPC) code having a code rate of 2/15. The processor maps the codeword to 16 symbols of the non-uniform 16-symbol signal constellation on a 4-bit basis.
- KSP Keywords
- Low Density Parity Check(LDPC), Low-density parity-check (LDPC) codes, Modulation method, Non-uniform, code rate, low density, parity check, signal constellation
- Family