State-Dependent DMC with a Causal Helper

التفاصيل البيبلوغرافية
العنوان: State-Dependent DMC with a Causal Helper
المؤلفون: Lapidoth, Amos, Wang, Ligong
سنة النشر: 2023
المجموعة: Computer Science
Mathematics
مصطلحات موضوعية: Computer Science - Information Theory
الوصف: A memoryless state sequence governing the behavior of a memoryless state-dependent channel is to be described causally to an encoder wishing to communicate over said channel. Given the maximal-allowed description rate, we seek the description that maximizes the Shannon capacity. It is shown that the maximum need not be achieved by a memoryless (symbol-by-symbol) description. Such descriptions are, however, optimal when the receiver is cognizant of the state sequence or when the description is allowed to depend on the message. For other cases, a block-Markov scheme with backward decoding is proposed.
Comment: To appear in the IEEE Transactions on Information Theory
نوع الوثيقة: Working Paper
URL الوصول: http://arxiv.org/abs/2304.12687
رقم الأكسشن: edsarx.2304.12687
قاعدة البيانات: arXiv