Efficient Pilot Patterns and Channel Estimations for MIMO-OFDM Systems

Author

Baek, Jong-Seob ; Seo, Jong-Soo

Author_Institution

Dept. of Electr. & Electron. Eng., Yonsei Univ., Seoul, South Korea

Volume

58

Issue

4

fYear

2012

Firstpage

648

Lastpage

653

Abstract

In this paper, we present the efficient pilot patterns and channel estimations for a high-rate multi-input multi-output orthogonal frequency division multiplexing (MIMO-OFDM) system. In particular, we propose the scattered pilot (SP), edge pilot (EP), and continuous pilot (CP) by exploiting a basic orthogonal property of a unitary matrix. From the orthogonal property, we then propose the efficient channel frequency response (CFR) and channel impulse response (CIR) estimations. Finally, we evaluate the efficiency of the proposed schemes by comparing with a multi-input single-output OFDM (MISO-OFDM) system.

Keywords

MIMO communication; OFDM modulation; channel estimation; frequency response; matrix algebra; transient response; CFR estimation; CIR estimation; MIMO-OFDM systems; MISO-OFDM system; channel frequency response estimation; channel impulse response estimation; continuous pilot; edge pilot; efficient pilot patterns; high-rate multiinput multioutput system; multiinput single-output OFDM system; orthogonal frequency division multiplexing system; scattered pilot; unitary matrix; Channel estimation; Digital video broadcasting; Estimation; MIMO; OFDM; Receiving antennas; Signal to noise ratio; Channel estimation; multi-input multi-output system; orthogonal frequency division multiplexing; pilot pattern;

fLanguage

English

Journal_Title

Broadcasting, IEEE Transactions on

Publisher

ieee

ISSN

0018-9316

Type

jour

DOI

10.1109/TBC.2012.2191696

Filename

6196188