S. Roy, J. R. Foerster, V. S. Somayazulu, and D. G. Leeper, Ultrawideband Radio Design: The Promise of High-Speed, Short-Range Wireless Connectivity, Proceedings of the IEEE, vol.92, issue.2, 2004.
DOI : 10.1109/JPROC.2003.821910

A. Batra, J. Balakrishnan, G. R. Aiello, J. R. Foerster, and A. Dabak, Design of a Multiband OFDM System for Realistic UWB Channel Environments, IEEE transaction on microwave theory and techniques, pp.2123-2138, 2004.
DOI : 10.1109/TMTT.2004.834184

X. Ma, H. Kobayashi, and S. C. Schawrtz, EM-Based Channel Estimation Algorithms for OFDM, EURASIP Journal on Advances in Signal Processing, vol.2004, issue.10, pp.1460-1477, 2004.
DOI : 10.1155/S1110865704311121

URL : http://doi.org/10.1155/s1110865704311121

T. Y. Al-naffouri, A. Bahai, and A. Paulraj, Semi-blind channel identification and equalization in OFDM: an expectation-maximization approach, Proceedings IEEE 56th Vehicular Technology Conference, pp.13-17, 2002.
DOI : 10.1109/VETECF.2002.1040292

G. J. Mclachlan and T. Krishnan, The EM Algorithm and Extensions, 1997.

I. M. Johnstone and B. W. Silverman, Neddles and straw in haystacks: Empirical bayes estimates of possibly sparse sequences, Annals of Statistics, vol.32, pp.1594-1649, 2004.

S. Sadough and E. Jaffrot, A wavelet packet based model for an ultrawideband propagation channel, Proc. ECPS 2005, 2005.

S. Bories, A. Sibille, and C. Roblin, UWB indoor channel measurement, Proc. IWAT, pp.466-469, 2005.
DOI : 10.1109/iwat.2005.1461118