Sum-Rate Capacity for Symmetric Gaussian Multiple Access Channels With Feedback

被引：7
|
作者：
Sula, Erixhen [1 ]
Gastpar, Michael [1 ]
Kramer, Gerhard [2 ]
机构：
[1] Ecole Polytech Fed Lausanne EPFL, Sch Comp & Commun Sci, CH-1015 Lausanne, Switzerland
[2] Tech Univ Munich TUM, Chair Commun Engn, D-80333 Munich, Germany
来源：
IEEE TRANSACTIONS ON INFORMATION THEORY | 2020年 / 66卷 / 05期
基金：
瑞士国家科学基金会;
关键词：
Capacity; Gaussian multiple-access channel (GMAC); feedback; factorization of convex envelope; OUTER BOUNDS; REGION;
D O I：
10.1109/TIT.2019.2957808
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
The feedback sum-rate capacity is established for the symmetric $J$ -user Gaussian multiple-access channel (GMAC). The main contribution is a converse bound that combines the dependence-balance argument of Hekstra and Willems (1989) with a variant of the factorization of a convex envelope of Geng and Nair (2014). The converse bound matches the achievable sum-rate of the Fourier-Modulated Estimate Correction strategy of Kramer (2002).
引用
收藏
页码：2860 / 2871
页数：12
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