Acta Metallurgica Sinica(English letters) ›› 2009, Vol. 16 ›› Issue (3): 40-44.doi: 10.1016/S1005-8885(08)60225-3

• Wireless • Previous Articles     Next Articles

Channel estimation in space and frequency domain for MIMO-OFDM systems

PAN Pei-sheng, ZHENG Bao-yu   

  1. College of Communication and Information, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-06-30
  • Contact: PAN Pei-sheng

Abstract:

Multiple-input multiple-output (MIMO) systems can be combined with orthogonal frequency division multiplexing (OFDM) systems to improve the capacity and quality of wireless communications. In this article, a channel estimation technique in both space and frequency domain for MIMO-OFDM systems is proposed. It is shown that the proposed scheme with space-frequency pilot tones achieve optimal minimum mean square error (MMSE) channel estimation. Simulation results indicate that the proposed method achieves good performance.

Key words:

channel estimation;MIMO;OFDM;space frequency pilot tones