naa a22 4500 510794858 CHVBK 20180411083332.0 cr unu---uuuuu 180411e20130401xx s 000 0 eng 10.1007/s11277-012-0654-y doi (NATIONALLICENCE)springer-10.1007/s11277-012-0654-y Unitary-ESPRIT Algorithm for Carrier Frequency Offset Estimation for Interleaved OFDMA Uplink Systems [Elektronische Daten] [Ruiyan Du, Jinkuan Wang, Fulai Liu] The carrier frequency offset (CFO) estimation is an important task for orthogonal frequency-division multiple-access (OFDMA) systems. Making use of the intrinsic periodic structure of the received signal samples, an effective Unitary-ESPRIT algorithm based on unitary transformation technique is proposed for the CFO estimation problem. Compared with other recently proposed CFO estimation approaches, the proposed algorithm offers a number of advantages. Firstly, the presented approach can reduce the computation complexity considerably, since it is efficiently formulated in terms of real-valued computation except for the data preprocessing. Secondly, it can provide better CFO estimation performance by incorporating the data stacking technology and the unitary transformation, etc. Simulation results demonstrate the efficacy of the proposed algorithm. Springer Science+Business Media, LLC., 2012 Carrier frequency offset (CFO) nationallicence Orthogonal frequency-division multiple-access (OFDMA) nationallicence Parameter estimation nationallicence Du Ruiyan School of Information Science and Engineering, Northeastern University, Shenyang, China aut Wang Jinkuan School of Information Science and Engineering, Northeastern University, Shenyang, China aut Liu Fulai School of Information Science and Engineering, Northeastern University, Shenyang, China aut Wireless Personal Communications Springer US; http://www.springer-ny.com 69/4(2013-04-01), 1615-1627 0929-6212 69:4<1615 2013 69 11277 https://doi.org/10.1007/s11277-012-0654-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11277-012-0654-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Du Ruiyan School of Information Science and Engineering, Northeastern University, Shenyang, China aut NATIONALLICENCE 700 1- Wang Jinkuan School of Information Science and Engineering, Northeastern University, Shenyang, China aut NATIONALLICENCE 700 1- Liu Fulai School of Information Science and Engineering, Northeastern University, Shenyang, China aut NATIONALLICENCE 773 0- Wireless Personal Communications Springer US; http://www.springer-ny.com 69/4(2013-04-01), 1615-1627 0929-6212 69:4<1615 2013 69 11277 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer