Multitrial decoding of concatenated codes using fixed thresholds
Multitrial decoding of concatenated codes using fixed thresholds
复制标题
使用固定阈值对级联码进行多重尝试解码
DOI：
10.1134/s0032946010020031
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发表时间：
2010
影响因子：
1.2
通讯作者：
V. Zyablov
中科院分区：
文献类型：
--
作者：
C. Senger;V. Sidorenko;M. Bossert;V. Zyablov
对于解码达到其设计距离一半的级联码，可以使用广义最小距离（GMD）解码。GMD解码对外码应用多次尝试的错误/删除解码，其中被删除的符号取决于源自内解码器的一些可靠性度量。我们考虑外解码器能够在超过外码最小距离一半的情况下进行解码的情形。对于给定的外解码尝试次数，我们推导出GMD解码可实现的解码半径。反之，我们给出了为获得最大可能解码半径所需的外解码尝试次数的下限。
For decoding concatenated codes up to half their designed distance, generalized minimum distance (GMD) decoding can be used. GMD decoding applies multitrial error/erasure decoding of the outer code, where erased symbols depend on some reliability measure stemming from the inner decoders. We consider the case where the outer decoder is able to decode beyond half the minimum distance of the outer code. For a given number of outer decoding trials, we derive achievable decoding radii for GMD decoding. Vice versa, we give a lower bound on the number of required outer decoding trials to obtain the greatest possible decoding radius.