Interference Alignment with Improved Stream Selection in Heterogeneous Networks

被引：0

作者：

Beyazit, Esra Aycan ^{[1
]}

Ozbek, Berna ^{[1
]}

Le Ruyet, Didier ^{[2
]}

机构：

[1] Izmir Yuksek Teknol Enstitusu, Elekt & Elekt Muhendisligi Bolumu, Izmir, Turkey

[2] CNAM, Elekt & Haberlesme Lab, Paris, France

来源：

2015 23RD SIGNAL PROCESSING AND COMMUNICATIONS APPLICATIONS CONFERENCE (SIU) | 2015年

关键词：

heterogeneous networks; interference alignment; stream selection;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this article, interference that occurs in heterogeneous networks is studied and a new stream selection approach with an interference alignment solution is presented. In the proposed algorithm, stream selection starts with the streams that belongs to the pico cell users and continues to select the strongest streams that increase the total sum rate. The power of each stream with the precoding and the postcoding vectors are calculated by performing singular value decomposition (SVD). Virtual channels that belong to the selected stream are calculated by using precoding and postcoding vectors. After the selection procedure, the interferences between the selected stream and the remaining streams are mitigated by orthogonally projecting the channel matrices of the remaining streams to the virtual channels of the selected stream.

引用

页码：1054 / 1057

页数：4

共 8 条

[1]

Amara M., 2012, 2012 9th International Symposium on Wireless Communication Systems (ISWCS 2012), P151, DOI 10.1109/ISWCS.2012.6328348

[2]

Aycan E, 2014, IEEE WCNC, P1143, DOI 10.1109/WCNC.2014.6952290

[3] Interference alignment and degrees of freedom of the K-user interference channel [J].

Cadambe, Viveck R. ;

Jafar, Syed Ali .

IEEE TRANSACTIONS ON INFORMATION THEORY, 2008, 54 (08) :3425-3441

[4] A Distributed Numerical Approach to Interference Alignment and Applications to Wireless Interference Networks [J].

Gomadam, Krishna ;

Cadambe, Viveck R. ;

Jafar, Syed A. .

IEEE TRANSACTIONS ON INFORMATION THEORY, 2011, 57 (06) :3309-3322

[5]

Schrader J, 2011, THEOR PRAX ERWACHSEN, P1

[6] Hierarchical Interference Alignment for Downlink Heterogeneous Networks [J].

Shin, Wonjae ;

Noh, Wonjong ;

Jang, Kyunghun ;

Choi, Hyun-Ho .

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, 2012, 11 (12) :4549-4559

[7] Downlink Interference Alignment [J].

Suh, Changho ;

Ho, Minnie ;

Tse, David N. C. .

IEEE TRANSACTIONS ON COMMUNICATIONS, 2011, 59 (09) :2616-2626

[8]

Zhao Y, 2012, ANN ALLERTON CONF, P1213, DOI 10.1109/Allerton.2012.6483356

← 1 →