On Achievable Degrees of Freedom of 3-user MIMO Interference Channels

被引：0
|
作者：
Yang, Lu [1 ]
Zhang, Wei [1 ]
机构：
[1] Univ New South Wales, Sch Elect Engn & Telecommun, Sydney, NSW 2052, Australia
来源：
2014 IEEE INFORMATION THEORY WORKSHOP (ITW) | 2014年
关键词：
ALIGNMENT;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper studies the achievable degrees of freedom (DoF) of 3-user MIMO interference channels based on linear spatial beamforming scheme. Previous work mainly focus on the scenario where each user must have the same DoF and the achievable sum DoF is 3(SIC) D-out/3 (SIC), where D-outer denotes the outer bound of sum DoF. In this paper, we investigate the scenarios where three users are allowed to have different DoF. Three interference alignment based signal transmission strategies are proposed and the achievable DoF is derived. We show that the achievable DoF of the proposed interference alignment scheme achieves the DoF of (SIC)D-out(SIC) some cases, which is equal to or higher than 3 (SIC)D-out/3(SIC).
引用
收藏
页码：97 / 101
页数：5
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