| Session: | 1.1.5 - LDPC Codes: Algebraic Constructions |
| Session Time: | Monday, July 10, 09:40 - 11:00 |
| Paper Time: | Monday, July 10, 10:00 - 10:20 |
| Title: |
Algebraic Constructions of Nonbinary Quasi-Cyclic LDPC Codes |
| Authors: |
Shumei Song; University of California, Davis | | |
| | Lingqi Zeng; University of California, Davis | | |
| | Shu Lin; University of California, Davis | | |
| | Khaled Abdel-Ghaffar; University of California, Davis | | |
| Abstract: |
This paper presents three algebraic methods for constructing nonbinary quasi-cyclic (QC)-LDPC codes. Three classes of efficiently encodable QC-LDPC codes over nonbinary finite fields are constructed. Experimental results show that constructed codes decoded with iterative decoding perform well over the AWGN channel and they achieve significant coding gains over Reed-Solomon(RS) codes of the same lengths and rates decoded with algebraic decoding. |
