Bounds on the Capacity of the Relay Channel with Noncausal State Information at Source

被引：5

作者：

Zaidi, Abdellatif ^{[1
]}

Shamai , Shlomo ^{[2
]}

Piantanida, Pablo ^{[3
]}

Vandendorpe, Luc ^{[1
]}

机构：

[1] Catholic Univ Louvain, Ecole Polytech Louvain, B-1348 Louvain, Belgium

[2] Technion Israel Inst Technol, Dept EE, Haifa, Israel

[3] SUPELEC, Dept Telecommun, Gif Sur Yvette 91192, France

来源：

2010 IEEE INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY | 2010年

关键词：

D O I：

10.1109/ISIT.2010.5513564

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

We consider a three-terminal state-dependent relay channel with the channel state available non-causally at only the source. Such a model may be of interest for node cooperation in the framework of cognition, i.e., collaborative signal transmission involving cognitive and non-cognitive radios. We study the capacity of this communication model. One principal problem in this setup is caused by the relay's not knowing the channel state. In the discrete memoryless (DM) case, we establish lower bounds on channel capacity. For the Gaussian case, we derive lower and upper bounds on the channel capacity. The upper bound is strictly better than the cut-set upper bound. We show that one of the developed lower bounds comes close to the upper bound, asymptotically, for certain ranges of rates.

引用

页码：639 / 643

页数：5

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