Channel estimation for OFDM transmission in multipath fading channels based on parametric channel modeling

@article{citeulike:2002785, abstract = {We present an improved channel estimation algorithm for orthogonal frequency-division multiplexing mobile communication systems using pilot subcarriers. This algorithm is based on a parametric channel model where the channel frequency response is estimated using an L-path channel model. In the algorithm, we employ the ESPRIT (estimation of signal parameters by rotational invariance techniques) method to do the initial multipath time delays acquisition and propose an interpath interference cancellation delay locked loop to track the channel multipath time delays. With the multipath time delays information, a minimum mean square error estimator is derived to estimate the channel frequency response. It is demonstrated that the use of the parametric channel model can effectively reduce the signal subspace dimension of the channel correlation matrix for the sparse multipath fading channels and, consequently, improve the channel estimation performance}, author = {Yang, Baoguo and Letaief, K. B. and Cheng, R. S. and Cao, Zhigang }, booktitle = {Communications, IEEE Transactions on}, citeulike-article-id = {2002785}, journal = {Communications, IEEE Transactions on}, keywords = {channel, estimation, model, multipath, ofdm, transmission}, number = {3}, pages = {467--479}, posted-at = {2007-11-28 10:30:50}, priority = {2}, title = {Channel estimation for OFDM transmission in multipath fading channels based on parametric channel modeling}, url = {http://ieeexplore.ieee.org/xpls/abs\_all.jsp?arnumber=911454}, volume = {49}, year = {2001} }

TY - JOUR ID - citeulike:2002785 L3 - citeulike-article-id:2002785 TI - Channel estimation for OFDM transmission in multipath fading channels based on parametric channel modeling T2 - Communications, IEEE Transactions on JF - Communications, IEEE Transactions on VL - 49 IS - 3 SP - 467 EP - 479 N2 - We present an improved channel estimation algorithm for orthogonal frequency-division multiplexing mobile communication systems using pilot subcarriers. This algorithm is based on a parametric channel model where the channel frequency response is estimated using an L-path channel model. In the algorithm, we employ the ESPRIT (estimation of signal parameters by rotational invariance techniques) method to do the initial multipath time delays acquisition and propose an interpath interference cancellation delay locked loop to track the channel multipath time delays. With the multipath time delays information, a minimum mean square error estimator is derived to estimate the channel frequency response. It is demonstrated that the use of the parametric channel model can effectively reduce the signal subspace dimension of the channel correlation matrix for the sparse multipath fading channels and, consequently, improve the channel estimation performance KW - channel KW - estimation KW - model KW - multipath KW - ofdm KW - transmission AU - Yang, Baoguo AU - Letaief, KB AU - Cheng, RS AU - Cao, Zhigang PY - 2001/// UR - http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=911454 ER -