Joint Channel Estimation for Three-Hop MIMO Relaying Systems

被引：14

作者：

Cavalcante, Italo Vitor ^{[1
]}

de Almeida, Andre L. F. ^{[1
]}

Haardt, Martin ^{[2
]}

机构：

[1] Univ Fed Ceara, Dept Teleinformat Engn, BR-60455760 Fortaleza, Ceara, Brazil

[2] Ilmenau Univ Technol, Commun Res Lab, Ilmenau, Germany

来源：

IEEE SIGNAL PROCESSING LETTERS | 2015年 / 22卷 / 12期

关键词：

Channel estimation; cooperative communications; relaying; tensor decomposition; AMPLIFY;

D O I：

10.1109/LSP.2015.2490251

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：

We propose a novel joint channel estimator for a relaying MIMO communication system. Considering a three-hop relaying protocol, our combined alternating least squares (Comb-ALS) algorithm obtains cooperative diversity by fully exploiting the tensor algebraic structures of the available cooperative MIMO links. This is achieved by coupling the tensor data for the different relay-assisted links to iteratively estimate the channel matrices. Simulation results corroborate the effectiveness of the proposed tensor-based joint channel estimator in comparison with a sequential tensor-based method and a sequential LS estimator.

引用

页码：2430 / 2434

页数：5

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