Research and Improvement on SNR Estimation Algorithm in OFDM Used in Cable Channel

In this article, several typical SNR estimation algorithms are analyzed, and according to the characteristics of cable channel, an improved algorithm is put forward based on the channel differentia SNR estimation algorithm. Simulation results show that the improved algorithm has improved the estimation precision effectively, and this SNR estimation algorithm can be applied for OFDM systems of cable channel.

[1]  H. Arslan,et al.  MMSE Noise Power and SNR Estimation for OFDM Systems , 2006, 2006 IEEE Sarnoff Symposium.

[2]  S. Boumard,et al.  Novel noise variance and SNR estimation algorithm for wireless MIMO OFDM systems , 2003, GLOBECOM '03. IEEE Global Telecommunications Conference (IEEE Cat. No.03CH37489).

[3]  X. You,et al.  Subspace-based noise variance and SNR estimation for MIMO OFDM systems , 2006 .

[4]  Xiaohu You,et al.  Subspace-based noise variance and SNR estimation for OFDM systems [mobile radio applications] , 2005, IEEE Wireless Communications and Networking Conference, 2005.

[5]  Guo Wei,et al.  A novel SNR estimation algorithm for OFDM , 2005, 2005 IEEE 61st Vehicular Technology Conference.

[6]  John M. Cioffi,et al.  A practical discrete multitone transceiver loading algorithm for data transmission over spectrally shaped channels , 1995, IEEE Trans. Commun..