Abstract
We propose a class of rate-compatible (RC) low-density parity-check (LDPC) codes that has linear encoding complexity and low error floor. To ensure linear encoding, a deterministic form for the parity part of the mother parity-check matrix is used. To guarantee good performances in the waterfall region for a wide range of code rates, a layered density evolution algorithm is developed to obtain the degree distributions. Then, a layered node-connection algorithm is proposed to lower the error floor by increasing the values of extrinsic-message degrees of the codes. Simulation results show that no error floor is observed at a frame error rate of 10-5 for the proposed RC code.
Original language | English |
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DOIs | |
Publication status | Published - 2013 |
Externally published | Yes |
Event | 9th International Conference on Information, Communications and Signal Processing, ICICS 2013 - Tainan, Taiwan, Province of China Duration: Dec 10 2013 → Dec 13 2013 |
Conference
Conference | 9th International Conference on Information, Communications and Signal Processing, ICICS 2013 |
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Country/Territory | Taiwan, Province of China |
City | Tainan |
Period | 12/10/13 → 12/13/13 |
ASJC Scopus Subject Areas
- Computer Networks and Communications
- Information Systems
- Signal Processing