Channel estimation using orthogonal superimposed pilot for MIMO systems

Author

Xing, Huiling ; Wei, Dongxing ; Yin, Fuliang

Author_Institution

Sch. of Inf. & Commun. Eng., Dalian Univ. of Technol., Dalian, China

Volume

2

fYear

2010

Abstract

We propose a superimposed pilot-based channel estimation scheme for frequency-flat block fading multiple-input multiple-output (MIMO) channels. The superimposed pilot (SIP) is designed to be orthogonal to the transmitted data matrix, and the orthogonal property is obtained by exploiting the random space-time symbol interleaver at transmitter. Since the pilot and data can be totally decoupled, the performance degradation of channel estimation due to the presence of the unknown data is eliminated. Simulation results show the enhanced performance of the proposed scheme.

Keywords

MIMO communication; block codes; channel estimation; fading channels; interleaved codes; radio transmitters; random codes; space-time codes; MIMO channel; MIMO system; channel estimation; frequency-flat block fading; multiple-input multiple-output system; orthogonal property; orthogonal superimposed pilot; performance degradation; random space-time symbol interleaver; transmitted data matrix; transmitter; Channel estimation; Covariance matrix; Fading; MIMO; Simulation; Time division multiplexing; Training; MIMO systems; channel estimation; orthogonal superimposed pilot (OSIP); space-time symbol interleavin;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing Systems (ICSPS), 2010 2nd International Conference on

Conference_Location

Dalian

Print_ISBN

978-1-4244-6892-8

Electronic_ISBN

978-1-4244-6893-5

Type

conf

DOI

10.1109/ICSPS.2010.5555739

Filename

5555739