On the Capacity of Cognitive Relay assisted Gaussian Interference Channel

被引：55

作者：

Sridharan, Sriram ^{[1
]}

Vishwanath, Sriram ^{[1
]}

Jafar, Syed A. ^{[2
]}

Shamai, Shlomo ^{[3
]}

机构：

[1] Univ Texas Austin, Dept Elect & Comp Engn, Wireless Networking & Commun Grp, Austin, TX 78712 USA

[2] Univ Calif Irvine, Dept Elect & Comp Sci, Irvine, CA 96297 USA

[3] Technion Israel Inst Technol, Dept Elect Engn, IL-32000 Haifa, Israel

来源：

2008 IEEE INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY PROCEEDINGS, VOLS 1-6 | 2008年

关键词：

D O I：

10.1109/ISIT.2008.4595046

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

This paper studies a two source, two destination Gaussian interference channel in the presence of a cognitive relay. The cognitive relay has access to the messages transmitted by both the sources and assists them in communicating the messages successfully to their respective destinations. An achievable rate region for the system is derived by combining the Han-Kobayashi coding scheme for the general interference channel with dirty paper coding. The paper also derives outer bounds on the capacity region and obtains the degrees of freedom of the system.

引用

页码：549 / +

页数：2

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