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Paper detail

Upper and Lower Bounds on the Minimum Distance of Expander Codes

The minimum distance of expander codes over GF(q) is studied. A new upper bound on the minimum distance of expander codes is derived. The bound is shown to lie under the Varshamov-Gilbert (VG) bound while q >= 32. Lower bounds on the minimum distance of some families of expander codes are obtained. A lower bound on the minimum distance of low-density parity-check (LDPC) codes with a Reed--Solomon constituent code over GF(q) is obtained. The bound is shown to be very close to the VG bound and to lie above the upper bound for expander codes.

preprint2011arXivOpen access
Alexey FrolovVictor Zyablov
math.ITInformation Theory
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Alexey FrolovVictor Zyablov

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