Advanced SearchSearch Tips
Channel Estimation Using Virtual Pilot Signal for MIMO-OFDM Systems
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Channel Estimation Using Virtual Pilot Signal for MIMO-OFDM Systems
Seo, Heejin; Park, Sunho; Kim, Jinhong; Shim, Byonghyo;
  PDF(new window)
In this paper, we proposed a soft decision-directed channel estimation based on MMSE estimation for MIMO-OFDM system. While the conventional method employs only pilot signals for channel estimation, the proposed algorithm performs channel estimation using pilot and reliable data signals. We also proposed selection criterion among reliable data signal for channel estimation. From numerical simulations, we show that the proposed channel estimator achieves 1 dB performance gain over conventional channel estimators.
Channel Estimation;Orthogonal Frequency Division Multiplexing(OFDM);Multi-Input Multi-Output(MIMO);Decision-Directed Channel Estimation;Iterative Detection and Decoding;
 Cited by
Y. Li, "Simplified channel estimation for OFDM systems with multiple transmit antennas", IEEE Trans. Wireless Commun., vol. 1, pp. 67-75, Jan. 2002. crossref(new window)

M. Munster, L. Hanzo, "Parallel-interference-cancellationassisted decision-directed channel estimation for OFDM systems using multiple transmit antennas", IEEE Trans. on Wireless Commun., vol. 4, pp. 2148-2162, Sep. 2005. crossref(new window)

S. Song, A. Singer, and K. Sung, "Soft input channel estimation for turbo equalization", IEEE Trans. Signal Processing, vol. 52, pp. 2885-2894, Oct. 2004. crossref(new window)

J. Choi, B. Shim, and A. Singer, "Efficient soft-input soft-output tree detection via an improved path metric", IEEE Trans. Inf. Theory, vol. 58, no. 3, pp. 1518-1533, March 2012. crossref(new window)

J. Lee, B. Shim, and I. Kang, "Soft-input soft-output list sphere detection with a probabilistic radius tightening", IEEE Trans. Wire. Commun., vol. 11, no. 8, pp. 2848-2857, Aug. 2012.

3GPP TS 36.101 V9.1.0(2009-09): "Evolved Universal Terrestrial Radio Access(E-UTRA); User Equipment(UE) radio transmission and reception(Release 9)".

3GPP TS 36.211 V9.1.0(2010-03): "Evolved Universal Terrestrial Radio Access(E-UTRA); Physical Channels and Modulation(Release 9)".

B. M. Hochwald, S. ten Brink, "Achieving near-capacity on a multipleantenna channel", IEEE Trans. Commun., vol. 51, pp. 389-399, Mar. 2003. crossref(new window)