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Quasi-Cyclic Low-Density Parity-Check Codes for Space-Time Bit-Interleaved Coded Modulation
- Authors
- Hong, Song-Nam; Kim, Sunghwan; Shin, Dong-Joon; Lee, Inkyu
- Issue Date
- 10월-2008
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Quasi-cyclic low-density parity-check (QC-LDPC) codes; space-time bit-interleaved coded modulation (ST-BICM); diversity order
- Citation
- IEEE COMMUNICATIONS LETTERS, v.12, no.10, pp.767 - 769
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE COMMUNICATIONS LETTERS
- Volume
- 12
- Number
- 10
- Start Page
- 767
- End Page
- 769
- ISSN
- 1089-7798
- Abstract
- In this letter, it is shown that the diversity order of space-time bit-interleaved coded modulation (ST-BICM) system is determined by the number of submatrices having linearly independent column vectors in a parity-check matrix of quasicyclic low-density parity-check (QC-LDPC) code. It is also proved that this diversity order can be derived from the base matrix of QC-LDPC code, which can make it easy to design QC-LDPC codes suitable for ST-BICM systems. Finally, the simulation results are provided to confirm the analytical results.
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