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An Efficient Construction Strategy for Near-Optimal Variable-Length Error-Correcting Codes
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DOI：10.1109/LCOMM.2019.2891623.png)
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摘要
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In this letter, we present an efficient cross-entropy (CE)-based algorithm for the design of variable-length error-correcting (VLEC) codes under the joint source and channel coding (JSCC) framework. The algorithm enables us to construct the near-optimal VLEC codes that have the minimum average code-word length (ACL) with low search complexity. The efficiency of the proposed CE-based algorithm makes it possible to construct the VLEC codes that have small ACL values under various free-distance constraints, especially for large-sized signal alphabets.
Keyword:
Joint source-channel coding (JSCC)
separate source-channel coding (SSCC)
variable-length error-correcting (VLEC) codes
cross-entropy method
期刊
IF:
4.4
论文数:
1.3W
被引数:
2.2W
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