Journal of Beijing University of Posts and Telecommunications

  • EI核心期刊

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2007, Vol. 30 ›› Issue (3): 45-49.doi: 10.13190/jbupt.200703.45.wangy

• Papers • Previous Articles     Next Articles

Scheme of Pilot Design and Channel Estimation in MIMO-OFDM System

WANG Yi, TAO Xiao-feng, ZHANG Ping   

  1. Wireless Tech and Innovation Institute of Beijing Univ. of Posts and Telecom, Key Laboratory of Ubiquitous Wireless Communication, Ministry of Education, Beijing, China
  • Received:2006-06-01 Revised:1900-01-01 Online:2007-06-30 Published:2007-06-30
  • Contact: WANG Yi

Abstract:

Orthogonal frequency-division multiplexing (OFDM) combined with multiple-input multiple-output (MIMO) is an efficient technique to improve wireless communication performance and capacity. To improve the performance of MIMO-OFDM system, a novel pilot sequence taking advantage of the orthogonality of space frequency block code (SFBC) as well as the corresponding simple channel estimation algorithm, is presented in this paper. The theoretic mean square error (MSE) of the algorithm is deduced and the complexity is also given. The performance of the proposed scheme is verified by simulations.

Key words: Key words: Channel estimation, Pilot design, Orthogonal frequency division multiplexing, Multiple input multiple output, Space Frequency Block Code

CLC Number: