Linear precoding design based on distortion channel estimate in MIMO relay system

Author

Du, Nuannan ; Han, Na ; Ma, Yingying

Author_Institution

Dept. of Comput. Sci., Pingdingshan Ind. Coll. of Technol., Pingdingshan, China

fYear

2012

fDate

24-27 June 2012

Firstpage

543

Lastpage

546

Abstract

A linear relay precoding design scheme is proposed based on distortion channel estimation in the amplify-and-forward MIMO relay system, this scheme modeles the channel estimation errors as Gaussian random variables. The closed-form solution is derived according to the minimum mean squared error (MMSE) criterion. The numerical simulation results show that comparing with other schemes that do not consider channel estimation errors, this scheme achieves better performance in terms of both mean squared error (MSE) and bit error rate (BER).

Keywords

Gaussian processes; MIMO communication; amplify and forward communication; channel estimation; distortion; error statistics; linear codes; mean square error methods; precoding; random processes; BER; Gaussian random variables; MMSE criterion; amplify-and-forward MIMO relay system; bit error rate; channel estimation errors; closed-form solution; distortion channel estimation; linear relay precoding design scheme; minimum mean squared error criterion; numerical simulation; Artificial intelligence; MIMO; Relays; Signal to noise ratio; amplify-and-forward (AF); minimum mean squared error (MMSE); multiple input multiple output (MIMO); precoding; relay;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical & Electronics Engineering (EEESYM), 2012 IEEE Symposium on

Conference_Location

Kuala Lumpur

Print_ISBN

978-1-4673-2363-5

Type

conf

DOI

10.1109/EEESym.2012.6258714

Filename

6258714