Pseudocodeword weights for non-binary LDPC codes
<|reference_start|>Pseudocodeword weights for non-binary LDPC codes: Pseudocodewords of q-ary LDPC codes are examined and the weight of a pseudocodeword on the q-ary symmetric channel is defined. The weight definition of a pseudocodeword on the AWGN channel is also extended to two-dimensional q-ary modulation such as q-PAM and q-PSK. The tree-based lower bounds on the minimum pseudocodeword weight are shown to also hold for q-ary LDPC codes on these channels.<|reference_end|>
@article{kelley2006pseudocodeword,
    title={Pseudocodeword weights for non-binary LDPC codes},
    author={Christine A. Kelley, Deepak Sridhara, and Joachim Rosenthal},
    journal={arXiv preprint arXiv:cs/0605118},
    year={2006},
    doi={10.1109/ISIT.2006.262072},
    archivePrefix={arXiv},
    eprint={cs/0605118},
    primaryClass={cs.IT math.IT}
}