What is the price paid for superimposed training in OFDM?

@inproceedings{citeulike:2003235, abstract = {Orthogonal frequency division multiplexing (OFDM) transmission with superimposed training is considered in this paper. The superimposed training scheme is promoted for its high bandwidth efficiency, low computational complexity, and possibly improved power amplifier (PA) efficiency. Channel equalization is also straightforward thanks to the OFDM structure. By analyzing the peak-to-average power ratio (PAR) of the superimposed OFDM signal and utilizing a peak power constraint, we demonstrate that it is possible to lose a little in the information signal power, but gain a lot in the power that is devoted to channel sounding.}, author = {Chen, Ning and Zhou, G. T. }, booktitle = {Acoustics, Speech, and Signal Processing, 2004. Proceedings. (ICASSP '04). IEEE International Conference on}, citeulike-article-id = {2003235}, journal = {Acoustics, Speech, and Signal Processing, 2004. Proceedings. (ICASSP '04). IEEE International Conference on}, keywords = {acquisition, ofdm, pn-sequence, tracking}, pages = {iv-421--iv-424 vol.4}, posted-at = {2007-11-28 11:36:48}, priority = {2}, title = {What is the price paid for superimposed training in OFDM?}, url = {http://ieeexplore.ieee.org/xpls/abs\_all.jsp?arnumber=1326853}, volume = {4}, year = {2004} }

TY - CONF ID - citeulike:2003235 L3 - citeulike-article-id:2003235 TI - What is the price paid for superimposed training in OFDM? T2 - Acoustics, Speech, and Signal Processing, 2004. Proceedings. (ICASSP '04). IEEE International Conference on JF - Acoustics, Speech, and Signal Processing, 2004. Proceedings. (ICASSP '04). IEEE International Conference on VL - 4 SP - iv-421 EP - iv-424 vol.4 N2 - Orthogonal frequency division multiplexing (OFDM) transmission with superimposed training is considered in this paper. The superimposed training scheme is promoted for its high bandwidth efficiency, low computational complexity, and possibly improved power amplifier (PA) efficiency. Channel equalization is also straightforward thanks to the OFDM structure. By analyzing the peak-to-average power ratio (PAR) of the superimposed OFDM signal and utilizing a peak power constraint, we demonstrate that it is possible to lose a little in the information signal power, but gain a lot in the power that is devoted to channel sounding. KW - acquisition KW - ofdm KW - pn-sequence KW - tracking AU - Chen, Ning AU - Zhou, GT PY - 2004/// UR - http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=1326853 ER -