Experimental and analytical studies on a high-resolution OFDM carrier frequency offset estimator

@article{citeulike:2506774, abstract = {In orthogonal frequency-division multiplexing (OFDM) communications, carrier frequency offset must be estimated and compensated at the receiver to maintain orthogonality. In this paper, we examine the performance of a blind carrier frequency offset estimation algorithm for OFDM communications, Experiments were conducted on a system operating at close to 2 Mbits/s. Insights obtained from these experiments provided the motivation to explore the fundamental relationships between estimator performance and multiple system parameters such as the signal-to-noise ratio, number of data samples, frequency-selective fading, and power loading. We examine the sensitivity of the blind carrier frequency offset estimation algorithm using first-order perturbation analysis. In particular, we derive a closed-form expression for the mean square error of the carrier frequency offset estimator and present tradeoff studies for the high-resolution blind estimator performance. The analytical and simulation studies are in good agreement with experimental results}, author = {Tureli, U. and Kivanc, D. and Liu, Hui }, booktitle = {Vehicular Technology, IEEE Transactions on}, citeulike-article-id = {2506774}, doi = {10.1109/25.923074}, journal = {Vehicular Technology, IEEE Transactions on}, keywords = {carrier, estimation, frequency, ofdm, offset}, number = {2}, pages = {629--643}, posted-at = {2008-03-11 10:27:49}, priority = {2}, title = {Experimental and analytical studies on a high-resolution OFDM carrier frequency offset estimator}, url = {http://dx.doi.org/10.1109/25.923074}, volume = {50}, year = {2001} }

TY - JOUR ID - citeulike:2506774 L3 - citeulike-article-id:2506774 TI - Experimental and analytical studies on a high-resolution OFDM carrier frequency offset estimator T2 - Vehicular Technology, IEEE Transactions on JF - Vehicular Technology, IEEE Transactions on VL - 50 IS - 2 SP - 629 EP - 643 N2 - In orthogonal frequency-division multiplexing (OFDM) communications, carrier frequency offset must be estimated and compensated at the receiver to maintain orthogonality. In this paper, we examine the performance of a blind carrier frequency offset estimation algorithm for OFDM communications, Experiments were conducted on a system operating at close to 2 Mbits/s. Insights obtained from these experiments provided the motivation to explore the fundamental relationships between estimator performance and multiple system parameters such as the signal-to-noise ratio, number of data samples, frequency-selective fading, and power loading. We examine the sensitivity of the blind carrier frequency offset estimation algorithm using first-order perturbation analysis. In particular, we derive a closed-form expression for the mean square error of the carrier frequency offset estimator and present tradeoff studies for the high-resolution blind estimator performance. The analytical and simulation studies are in good agreement with experimental results KW - carrier KW - estimation KW - frequency KW - ofdm KW - offset AU - Tureli, U AU - Kivanc, D AU - Liu, Hui PY - 2001/// UR - http://dx.doi.org/10.1109/25.923074 ER -