Title :
The π-rotation low-density parity check codes
Author :
Echard, Rich ; Chang, Shih-Chun
Author_Institution :
Naval Res. Lab., Washington, DC, USA
Abstract :
We introduce an ensemble of quasi-regular low-density parity check error control codes we call π-rotation LDPC codes. These codes are completely defined by a single permutation vector of length n/8 where n is the length of the code. We present an efficient encoding scheme and circuit design based on the single permutation. Simulation results indicate that these codes perform as well as regular low density parity check codes based on completely random matrix constructions. These features make the π-rotation code valuable for practical communication system implementation
Keywords :
error correction codes; matrix algebra; π-rotation LDPC codes; π-rotation low-density parity check codes; circuit design; code length; communication system implementation; efficient encoding; low density parity check codes; performance curve; permutation vector length; quasi-regular error control codes; random matrix; simulation results; single permutation; AWGN; Additive white noise; Binary codes; Circuit simulation; Circuit synthesis; Error correction; Iterative decoding; Message passing; Parity check codes; Turbo codes;
Conference_Titel :
Global Telecommunications Conference, 2001. GLOBECOM '01. IEEE
Conference_Location :
San Antonio, TX
Print_ISBN :
0-7803-7206-9
DOI :
10.1109/GLOCOM.2001.965564
