Feedback Halves the Dispersion for Some Two-User Broadcast Channels with Common Message

被引：0
|
作者：
Trillingsgaard, Kasper Floe [1 ]
Yang, Wei [2 ]
Durisi, Giuseppe [3 ]
Popovski, Petar [1 ]
机构：
[1] Aalborg Univ, DK-9220 Aalborg, Denmark
[2] Princeton Univ, Princeton, NJ 08544 USA
[3] Chalmers Univ Technol, S-41296 Gothenburg, Sweden
来源：
2017 IEEE INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY (ISIT) | 2017年
基金：
瑞典研究理事会; 欧洲研究理事会;
关键词：
D O I：
暂无
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
We investigate the maximum coding rate achievable on a two-user broadcast channel for the case where a common message is transmitted using fixed-blocklength codes with feedback. Specifically, we focus on a family of broadcast channels composed of two antisymmetric Z-channels. For this setup, we obtain matching upper and lower bounds on the dispersion term in the asymptotic expansion of the maximum coding rate. These bounds reveal that the dispersion is halved compared to the no-feedback case.
引用
收藏
页码：196 / 200
页数：5
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