ADAPTIVE BEAM TRACKING FOR INTERFERENCE ALIGNMENT IN TIME-VARYING MIMO INTERFERENCE CHANNELS: CONJUGATE GRADIENT APPROACH

被引：0

作者：

Lee, Junse ^{[1
]}

Yu, Heejung

Sung, Youngchul ^{[1
]}

Lee, Yong H. ^{[1
]}

机构：

[1] Korea Adv Inst Sci & Technol, Dept Elect Engn, Taejon, South Korea

来源：

2011 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING | 2011年

基金：

新加坡国家研究基金会;

关键词：

Interference alignment; adaptive algorithm; conjugate gradient; least squares;

D O I：

暂无

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

Based on a linear formulation to interference alignment, an adaptive algorithm for interference-aligning beam tracking in time-varying MIMO interference channels is proposed. It is shown that obtaining the interference-aligning beam vector is equivalent to minimizing a certain Rayleigh quotient, and the conjugate gradient approach is adopted to construct an adaptive algorithm. The convergence and stability of the proposed algorithm are established in static channel case, and numerical results show that the proposed algorithm performs well compared with other existing methods with much less complexity.

引用

页码：3364 / 3367

页数：4

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