Interference Alignment for K-user MIMO Interference Channel using Multiple Relays

被引：0

作者：

Selvaprabhu, Poongundran ^{[1
]}

Chinnadurai, Sunil ^{[1
]}

Song, Sang Seob ^{[1
]}

Lee, Moon Ho ^{[1
]}

机构：

[1] Chonbuk Natl Univ, Div Elect & Informat Engn, 664-14Ga, Jeonju 561756, Chonbuk, South Korea

来源：

2014 14th International Symposium on Communications and Information Technologies (ISCIT) | 2014年

关键词：

K-user Interference channel; Degrees of freedom; Interference alignment; Channel state information (CSI);

D O I：

暂无

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

In this paper, we mainly focused on achieve the desired degree of freedom. Channel state information at the transmitter (CSIT) plays major role for K-user Multiple Input and Multiple Output (MIMO) M x N interference channels. Span Interference alignment method is used in order to align the interference. Each transmitter has two antennas which help to communicate with transmitter and relay node in an efficient way. In addition, by adding the relay nodes with the desired system model is helps to recover the Degree of Freedom (DoF) which is ideal for these models with global channel state information (CSI). Recently studies have shown that relay cannot improve the DoF of wireless interference networks but it helps to give some partial solutions to approach the interference alignment. The relay nodes which helps to steer directions of transmitter signals to expedite the interference alignment in order to achieve optimal DoF. A new performance method has been proposed in order to estimate the efficiency of an interference alignment.

引用

页码：16 / 20

页数：5

共 7 条

[1] Blind Interference Alignment [J].

Jafar, Syed A. .

IEEE JOURNAL OF SELECTED TOPICS IN SIGNAL PROCESSING, 2012, 6 (03) :216-227

[2] Interference Alignment Algorithms for the K User Constant MIMO Interference Channel [J].

Mohapatra, Parthajit ;

Nissar, K. E. ;

Murthy, Chandra R. .

IEEE TRANSACTIONS ON SIGNAL PROCESSING, 2011, 59 (11) :5499-5508

[3]

Niesen U., 2013, IEEE T INFORM THEORY, V59

[4]

Sahin Onur, 2010 IEEE 21 INT S

[5] Guiding Blind Transmitters: Degrees of Freedom Optimal Interference Alignment Using Relays [J].

Tian, Ye ;

Yener, Aylin .

IEEE TRANSACTIONS ON INFORMATION THEORY, 2013, 59 (08) :4819-4832

[6]

TiangaoGou, 2013, IEEE COMMUNICATION L, V17

[7] The Degree-of-Freedom Regions of MIMO Broadcast, Interference, and Cognitive Radio Channels With No CSIT [J].

Vaze, Chinmay S. ;

Varanasi, Mahesh K. .

IEEE TRANSACTIONS ON INFORMATION THEORY, 2012, 58 (08) :5354-5374

← 1 →