[1] Sheng Bin, You Xiaohu,. Lower bound on BER performancefor maximal ratio combining with weighting errors [J]. Journal of Southeast University (English Edition), 2005, 21 (4): 379-384. [doi:10.3969/j.issn.1003-7985.2005.04.001]

Copy

Lower bound on BER performancefor maximal ratio combining with weighting errors()

Share：

Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

21

Issue:

2005 4

Page:

379-384

Research Field:

Information and Communication Engineering

Publishing date:

2005-12-30

Info

Title:

Lower bound on BER performancefor maximal ratio combining with weighting errors

Author(s):

Sheng Bin;  You Xiaohu

National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China

Keywords:

lower bound;  bit error rate;  minimum mean-square error;  channel estimation;  maximal ratio combining

PACS:

TN929

DOI:

10.3969/j.issn.1003-7985.2005.04.001

Abstract:

The theoretical lower bounds on mean squared channel estimation errors for typical fading channels are presented by the infinite-length and non-causal Wiener filter and the exact closed-form expressions of the lower bounds for different channel Doppler spectra are derived.Based on the obtained lower bounds on mean squared channel estimation errors, the limits on bit error rate(BER)for maximal ratio combining(MRC)with Gaussian distributed weighting errors on independent and identically distributed(i.i.d)fading channels are presented.Numerical results show that the BER performances of ideal MRC are the lower bounds on the BER performances of non-ideal MRC and deteriorate as the maximum Doppler frequency increases or the SNR of channel estimate decreases.

References:

[1] Gans M J.The effect of Gaussian error in maximal ratio combiners [J].IEEE Trans Commun Tech, 1971, 19(4):492-500.
[2] Tomiuk B R, Beaulieu N C, Abu-Dayya A A.General forms for maximal ratio diversity with weighting errors [J].IEEE Trans Commun, 1999, 47(4):488-492.
[3] Cai X, Giannakis G B.Adaptive PSAM accounting for channel estimation and prediction errors [J].IEEE Trans Wireless Commun, 2005, 4(1):246-256.
[4] Ma Y, Schober R, Pasupathy S.Effect of imperfect channel estimation on MRC diversity in fading channels [A].In:IEEE ICC 2004 [C].Paris, 2004.3163-3167.
[5] Cavers J K.An analysis of pilot symbol assisted modulation for Rayleigh fading channels [J].IEEE Trans Veh Technol, 1991, 40(4):686-693.
[6] Brennan D G.Linear diversity combining techniques [J]. Proc IRE, 1959, 46:1075-1102.
[7] Haykin S.Adaptive filter theory.4rd ed [M].Englewood Cliffs: Prentice-Hall, 1996.
[8] Jakes W C.Microwave mobile communications [M].New York:Wiley, 1974.
[9] Proakis J G.Digital communications.3rd ed [M].New York:McGrawHill, 1995.

Memo

Memo:

Biographies: Sheng Bin(1974—), male, doctor, sbdtt@seu.edu.cn;You Xiaohu(1962—), male, doctor, professor, xhyu@seu.edu.cn.

Common functions