The ML decoding performance of LDPC ensembles over Z/sub q/ |
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| Authors: | Erez U. Miller G. |
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| Affiliation: | Dept. of Electr. Eng. & Comput. Sci., Massachusetts Inst. of Technol., Cambridge, MA, USA; |
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| Abstract: | We derive the asymptotic spectra of low-density parity-check (LDPC) ensembles over Z/sub q/. We consider two ensembles of LDPC matrices, one is binary and the other q-ary. We also show that for modulo-additive noise channels, both ensembles achieve the random coding error exponent, for graphs with sufficiently large connectivity. |
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