QoS based precoding scheme in K-user MIMO interference channels

Author

Jongpil Seo ; Jaeyoung Kim ; Chamsol Yang ; Jaehak Chung

Author_Institution

Inha Univ., Incheon, South Korea

fYear

2013

fDate

2-5 July 2013

Firstpage

135

Lastpage

136

Abstract

A QoS based precoding scheme with partial CSIT and simple computation in K-user MIMO interference channel is proposed. A transmitter-receiver pair for interference alignment (IA) is selected by a given criterion such as QoS or required data rate, etc., and others are performed by random beamforming and whitening matched filtering. Global channel knowledge is no longer needed at all transmitters and computational complexity is significantly reduced for transmitter and receiver design. Numerical results show that the sum capacity of the proposed scheme is reasonable compared to that of perfect IA.

Keywords

MIMO communication; computational complexity; matched filters; precoding; quality of service; radiofrequency interference; wireless channels; IA; K-user MIMO interference channels; QoS based precoding scheme; computational complexity; global channel knowledge; interference alignment; partial CSIT; random beamforming; transmitter-receiver pair; whitening matched filtering; Interference channels; MIMO; Quality of service; Receivers; Signal to noise ratio; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Ubiquitous and Future Networks (ICUFN), 2013 Fifth International Conference on

Conference_Location

Da Nang

ISSN

2165-8528

Type

conf

DOI

10.1109/ICUFN.2013.6614797

Filename

6614797