Title :
A method to construct girth-8 low density lattice codes
Author :
Wang, Xiaosong ; Chang, Guiran
Author_Institution :
Comput. Center of Northeastern Univ., Shenyang, China
Abstract :
First a new lattice coding scheme, low density lattice codes (LDLC), and its iterative decoding algorithm are introduced in this paper. Based on circular shift of the candidate sequence and the removal of size-6 loop, a new method is proposed to form a LDLC check matrix with minimum loop size 8. Simulation results show that the performance using the girth-8 check matrix can be improved efficiently.
Keywords :
iterative decoding; parity check codes; LDLC check matrix; circular shift; construct girth; iterative decoding; low density lattice codes; size-6 loop; AWGN channels; Additive white noise; Gaussian noise; Iterative algorithms; Iterative decoding; Lattices; Maximum likelihood decoding; Noise generators; Parity check codes; Sparse matrices; Low density lattice codes (LDLC); closest vector problem(CVP); iterative decoding;
Conference_Titel :
Communication Systems, 2008. ICCS 2008. 11th IEEE Singapore International Conference on
Conference_Location :
Guangzhou
Print_ISBN :
978-1-4244-2423-8
Electronic_ISBN :
978-1-4244-2424-5
DOI :
10.1109/ICCS.2008.4737184
