Unequal Error Protection Coding Approaches To The Noisy 20 Questions Problem
2016 IEEE International Symposium on Information Theory (ISIT)(2016)
摘要
In this paper, we pro pose an unequal error protection coding strategy based on superposition coding for the noisy 20 questions problem. In this problem, a player wishes to successively refine an estimate of the value of a continuous random variable by posing binary queries and receiving noisy responses. When the queries are designed non-adaptively as a single block and the noisy responses are modeled as the output of a binary symmetrie channel the 20 questions problem can be mapped to an equivalent problem of channel coding with unequal error protection (UEP). A superposition coding strategy with UEP is introduced that has error exponent that is significantly better than that of the UEP repetition code introduced by Variani et al. [1].
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关键词
unequal error protection coding,noisy 20 questions problem,superposition coding,continuous random variable,binary query,noisy response,single block,binary symmetric channel,channel coding,error exponent
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