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In this paper, the Zadoff\u2010Chu (ZC) sequences are used for OFDM synchronization in UWA communications, and they are compared with different data\u2010aided algorithms. We propose a low\u2010complexity algorithm for CFO estimation based on ZC sequences. Also, a joint equalization and CFO compensation scheme for UWA\u2010OFDM communication systems is presented. Simulation results demonstrate that the proposed CFO estimation algorithm allows estimation of the CFO accurately with a simple implementation in comparison with the traditional schemes. Also, the performance of the UWA\u2010OFDM system can be preserved in the presence of frequency offsets.<\/jats:p>","DOI":"10.1002\/dac.3972","type":"journal-article","created":{"date-parts":[[2020,1,24]],"date-time":"2020-01-24T02:15:01Z","timestamp":1579832101000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":15,"title":["Joint low\u2010complexity equalization and CFO estimation and compensation for UWA\u2010OFDM communication systems"],"prefix":"10.1002","volume":"33","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9791-0339","authenticated-orcid":false,"given":"Khaled","family":"Ramadan","sequence":"first","affiliation":[{"name":"Department of Electronics and Electrical Communications Engineering The Higher Institute of Engineering at Al\u2010Shorouk City  Cairo Egypt"}]},{"given":"Khalil F.","family":"Ramadan","sequence":"additional","affiliation":[{"name":"Department of Electronics and Electrical Communications Engineering, Faculty of Electronic Engineering Menoufia University  Menouf Egypt"}]},{"given":"Ahmed S.","family":"Fiky","sequence":"additional","affiliation":[{"name":"Department of Physics and Mathematical Engineering The Higher Institute of Engineering at Al\u2010Shorouk City  Cairo Egypt"}]},{"given":"Hasna","family":"Alam","sequence":"additional","affiliation":[{"name":"Department of Electronics and Electrical Communications Engineering, Faculty of Electronic Engineering Menoufia University  Menouf Egypt"}]},{"given":"Moawad I.","family":"Dessouky","sequence":"additional","affiliation":[{"name":"Department of Electronics and Electrical Communications Engineering, Faculty of Electronic Engineering Menoufia University  Menouf Egypt"}]},{"given":"Fathi E.","family":"Abd El\u2010Samie","sequence":"additional","affiliation":[{"name":"Department of Electronics and Electrical Communications Engineering, Faculty of Electronic Engineering Menoufia University  Menouf 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