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|Title:||Chase decoding of linear ℤ4 codes at low to moderate rates|
|Authors:||Armand, M.A. |
|Citation:||Armand, M.A., Halim, A., Nallanathan, A. (2007-10). Chase decoding of linear ℤ4 codes at low to moderate rates. IEEE Communications Letters 11 (10) : 811-813. ScholarBank@NUS Repository. https://doi.org/10.1109/LCOMM.2007.070821|
|Abstract:||A free ℤ4 code C may be decoded by decoding its canonical image C̄ over ℤ2 twice in succession. Hence, a Chase decoder for C could employ as its hard-decision (HD) decoder, a two-stage decoder which performs HD decoding on C̄ in each stage. Alternatively, one could have a two-stage soft-decision decoder by employing a Chase decoder for C̄ in each stage. We demonstrate that the latter approach can offer a significant reduction in complexity over the other, with little or no price to pay in terms of word error rate performance, particularly at low to moderate code rates. © 2007 IEEE.|
|Source Title:||IEEE Communications Letters|
|Appears in Collections:||Staff Publications|
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