Journal of Beijing University of Posts and Telecommunications

  • EI核心期刊

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2010, Vol. 33 ›› Issue (1): 43-46.doi: 10.13190/jbupt.201001.43.210

• Papers • Previous Articles     Next Articles

Adaptive Training Sequence Based Frequency Synchronization Scheme for MIMO-OFDM Systems

〗HUANG Zhen1,HUANG Hai1;PENG Duan2;YIN Changchuan1;GAO Long3   

  1. (1.School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China; 2.Information Engineering College, Guangdong University of Technology, Guangzhou 510006, China; 3.Department of Computer Science and Engineering, Texas Agriculture and Mechanic University, Texas 77843, USA)
  • Received:2009-04-07 Revised:2009-07-08 Online:2010-02-28 Published:2010-02-28
  • Contact: HUANG Zhen

Abstract:

Joint design of the carrier frequency offset (CFO) estimator and adaptive training sequence for multiinput multioutput orthogonal frequency division multiplexing (MIMO-OFDM) system is investigated. With adaptive training sequence, which is optimized according to channel state information (CSI) available at the transmitter, proposed CFO estimator can update Schenks estimator and then reduce the effect of channel noise and further increase the accuracy of CFO estimation in fading channels.

Key words: multi-input multi-output orthogonal frequency division multiplexing, frequency synchronization, carrier frequency offset, training sequence