Interference Alignment via Improved Subspace Conditioning

Author

Kim, Douglas ; Torlak, Murat

Author_Institution

Dept. of Electr. Eng., Univ. of Texas at Dallas, Richardson, TX, USA

fYear

2010

fDate

6-10 Dec. 2010

Firstpage

1

Lastpage

5

Abstract

For the K user, single input single output (SISO), frequency selective interference channel, a new low complexity transmit beamforming design that improves the achievable sum rate is presented. Jointly employing the interference alignment (IA) scheme presented by Cadambe and Jafar in and linear minimum mean square error (MMSE) decoding at the transmitters and receivers, respectively, the new IA precoding design improves the average sum rate while preserving the achievable degrees of freedom of the Cadambe and Jafar scheme, K/2.

Keywords

array signal processing; decoding; interference (signal); least mean squares methods; radiocommunication; SISO; improved subspace conditioning; interference alignment; linear minimum mean square error decoding; precoding design; single input single output frequency selective interference channel; transmit beamforming design; Algorithm design and analysis; Array signal processing; Interference channels; Optimization; Receivers; Signal to noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference (GLOBECOM 2010), 2010 IEEE

Conference_Location

Miami, FL

ISSN

1930-529X

Print_ISBN

978-1-4244-5636-9

Electronic_ISBN

1930-529X

Type

conf

DOI

10.1109/GLOCOM.2010.5683459

Filename

5683459