Degrees of freedom of the K-user interference channel with transmitter cooperation

被引：6
|
作者：
Annapureddy, V. Sreekanth [1 ]
El Gamal, Aly [1 ]
Veeravalli, Venugopal V. [1 ]
机构：
[1] Univ Illinois, ECE Dept, Coordinated Sci Lab, Urbana, IL 61801 USA
来源：
2010 IEEE INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY | 2010年
关键词：
D O I：
10.1109/ISIT.2010.5513372
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
We consider the K-user Gaussian interference channel in the context of the downlink of a cellular system where the base stations can exchange messages through a backhaul network, and the interfering users can be jointly served by multiple base stations. To limit the load on the backhaul network, the number of (base station) transmitters sharing a given message is bounded by a number M, which we call the cooperation order. We provide outer bounds on the sum degrees of freedom of this system, which are shown to be tight in special cases.
引用
收藏
页码：385 / 389
页数：5
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