Two Branch Beamforming for the Three User Constant MIMO Interference Channel

被引：0

作者：

Hwang, Duckdong ^{[1
]}

Lee, Tae-Jin ^{[1
]}

机构：

[1] Sungkyunkwan Univ, Sch Informat & Commun Engn, Suwon 440746, South Korea

来源：

WIRELESS PERSONAL COMMUNICATIONS | 2015年 / 80卷 / 03期

基金：

新加坡国家研究基金会;

关键词：

Interference alignment; The three user constant MIMO interference channel; Two branch beam-forming; ALIGNMENT; FREEDOM;

D O I：

10.1007/s11277-014-2085-4

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

We consider the interference alignment (IA) in the three user constant multiple input multiple output (MIMO) interference channel. A two branch transmit and receive beam-forming scheme is proposed, where the IA scheme of Cadambe and Jafar is applied to the top branches while the bottom branches help additional stream transmission without causing interference to the other users. This scheme is applicable without any restriction on the numbers of transmit and receive antennas and affords additional degree of freedom gain compared to the Cadambe and Jafar scheme. With the proposed scheme, the known degree of freedom upper bound of the beam-forming based IA is achieved in more general condition than the previous result for the three user constant MIMO interference channel, where is the number of antennas at the transmitter and is the number of antennas at the receivers.

引用

页码：1251 / 1261

页数：11

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