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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Li Peng Guangxi Zhu |
| Copyright Year | 2008 |
| Description | Author affiliation: Dept. of Electron. & Inf. Eng., Huazhong Univ. of Sci. & Technol., Wuhan (Li Peng; Guangxi Zhu) |
| Abstract | This paper have developed farther the method of constructing sparse parity-check matrix (H-matrix) with determinate systemic structure as well as designing practice recursive encoding algorithm of the low-density parity-check (LDPC) codes. It discovers that the LDPC codes based on the circulant-shifted permutation Q-matrix created by N-queens searching algorithm perform better than them based on permutation identity matrix when $H^{d}$ -matrix in H =[ $H^{p}$ $H^{d}]$ was constructed by using circulant-shifted permutation Q-matrix and identity matrix, respectively. It presents a simple and efficient algorithm of constructing $H^{d}$ matrix without 4-cycle and 6-cycle. The presented LDPC encoders require O(M) operation (M is check-bit size). They are rate-compatible and length- compatible encoders that can cover a very wide range of rate from 0.1 to 0.9 and length including any positive integer from 20 to infinity except prime number and multiple prime numbers. The presented LDPC codes with moderate length and 1/2 rate can achieve reliable performance - $10^{-5}~10^{-6}$ bit error rate (BER) - on an additive white Gaussian noise (AWGN) channel with signal-to-noise ratio (SNR) $E_{b}/N_{o}$ about 1.42 $dB^{1}.$ |
| Starting Page | 25 |
| Ending Page | 29 |
| File Size | 221296 |
| Page Count | 5 |
| File Format | |
| ISBN | 9781424417070 |
| DOI | 10.1109/ICCSC.2008.13 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2008-05-26 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Algorithm design and analysis Design engineering AWGN Bit error rate H infinity control Parity check codes Encoding Paper technology Sparse matrices Signal to noise ratio |
| Content Type | Text |
| Resource Type | Article |
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