{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,21]],"date-time":"2026-04-21T22:42:01Z","timestamp":1776811321928,"version":"3.51.2"},"reference-count":15,"publisher":"European Society of Computational Methods in Sciences and Engineering","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JCM"],"published-print":{"date-parts":[[2020,9,30]]},"abstract":"<jats:p>This paper proposes a method for compensation of sampling offset for orthogonal frequency division multiplexing (OFDM) used in wireless local area networks (WLAN). Sampling offset is a typical transmission interference used in OFDM systems that introduce large error when synchronized data is demodulated. In this regard, an appropriate offset compensation method with a simple structure can be adopted to mitigate the impacts of sampling offset by using cross-correlation and early-late gate compensation methods for OFDM receivers instead of conventional methods that use algorithms with analog and mixed mode loops implementations. When bit error rate (BER) is at 10-3, simulation with the method without sampling offset compensation showed a signal noise rate (SNR) curve of about 25 dB, while the SNR curve of the method with offset compensation as proposed in this paper is about 26 dB. The comparisons show that the proposed system sacrifices performance by 1 dB to realize the benefit of compensating sampling offset. This sacrifice of 1 dB in performance is within the system\u2019s tolerance range. Furthermore, the method overcomes the impact of sampling offset without additional hardware resource in WLAN applications.<\/jats:p>","DOI":"10.3233\/jcm-194051","type":"journal-article","created":{"date-parts":[[2020,2,11]],"date-time":"2020-02-11T10:50:06Z","timestamp":1581418206000},"page":"827-837","source":"Crossref","is-referenced-by-count":0,"title":["Low-complexity compensation of sampling offset with cross-correlation and early-late gate for OFDM receivers"],"prefix":"10.66113","volume":"20","author":[{"given":"Lingfei","family":"Zhang","sequence":"first","affiliation":[{"name":"School of Computer, Qinghai Normal University, Xining, Qinghai 810008, China"},{"name":"College of Physics and Electronic Information Engineering, Qinghai Nationalities University, Xining, Qinghai 810007, China"}]},{"given":"Jun","family":"Ma","sequence":"additional","affiliation":[{"name":"School of Computer, Qinghai Normal University, Xining, Qinghai 810008, China"}]},{"given":"Rongxin","family":"Liu","sequence":"additional","affiliation":[{"name":"The Institute of Electronic CAD, Xidian University, Xi\u2019an, Shaanxi 710071, China"}]},{"given":"Zhonglun","family":"You","sequence":"additional","affiliation":[{"name":"School of Electronic Engineering, Xi\u2019an University of Posts and Telecommunication, Xi\u2019an, Shaanxi 710071, China"}]},{"given":"Tingting","family":"Xiang","sequence":"additional","affiliation":[{"name":"The Institute of Electronic CAD, Xidian University, Xi\u2019an, Shaanxi 710071, China"}]}],"member":"55691","reference":[{"issue":"3","key":"10.3233\/JCM-194051_ref2","doi-asserted-by":"crossref","first-page":"501","DOI":"10.1109\/26.221081","article-title":"Interpolation in digital modems. I. Fundamentals","volume":"41","author":"Gardner","year":"1993","journal-title":"IEEE Transactions on Communications"},{"issue":"3","key":"10.3233\/JCM-194051_ref3","doi-asserted-by":"crossref","first-page":"503","DOI":"10.1109\/LCOMM.2013.123113.132444","article-title":"A low-complexity ML estimator for carrier and sampling frequency offsets in OFDM systems","volume":"18","author":"Wang","year":"2014","journal-title":"IEEE Communications Letters"},{"key":"10.3233\/JCM-194051_ref5","doi-asserted-by":"crossref","unstructured":"Q. Cheng, Joint estimation of carrier and sampling frequency offsets using OFDM WLAN preamble, in: 2015 15th International Symposium on Communications and Information Technologies (ISCIT), Nara, 2015, pp. 217\u2013220.","DOI":"10.1109\/ISCIT.2015.7458346"},{"key":"10.3233\/JCM-194051_ref6","doi-asserted-by":"crossref","unstructured":"L. Wang and D. Xu, A New Sampling Clock Synchronization Method in OFDM System, in: 2009 5th International Conference on Wireless Communications, Networking and Mobile Computing, Beijing, 2009, pp. 1\u20134.","DOI":"10.1109\/WICOM.2009.5301333"},{"issue":"4","key":"10.3233\/JCM-194051_ref7","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1109\/JPHOT.2017.2719718","article-title":"Timing recovery algorithm selection for duo-binary signal used in next generation 25G-EPON","volume":"9","author":"Xia","year":"2017","journal-title":"IEEE Photonics Journal"},{"key":"10.3233\/JCM-194051_ref8","doi-asserted-by":"crossref","unstructured":"M. Qu, X. He and L. You, Pilot-symbol assisted timing recovery for burst transmission, in: 2012 5th International Congress on Image and Signal Processing, Chongqing, 2012, pp. 1713\u20131717.","DOI":"10.1109\/CISP.2012.6469746"},{"key":"10.3233\/JCM-194051_ref9","doi-asserted-by":"crossref","unstructured":"H. Hu, C. Zhang, Y. Li and W. Jia, Demodulation of continuous phase 2FSK signal with Gardner synchronization, in: 2016 6th International Conference on Electronics Information and Emergency Communication (ICEIEC), Beijing, 2016, pp. 228\u2013231.","DOI":"10.1109\/ICEIEC.2016.7589726"},{"issue":"6","key":"10.3233\/JCM-194051_ref10","doi-asserted-by":"crossref","first-page":"998","DOI":"10.1109\/26.231921","article-title":"Interpolation in digital modems. II. Implementation and performance","volume":"41","author":"Erup","year":"1993","journal-title":"IEEE Transactions on Communications"},{"key":"10.3233\/JCM-194051_ref11","doi-asserted-by":"crossref","unstructured":"R. Ramlall, Blind, low complexity estimation of time and frequency offsets in OFDM systems, in: 2014 48th Asilomar Conference on Signals, Systems and Computers, Pacific Grove, CA, 2014, pp. 263\u2013267.","DOI":"10.1109\/ACSSC.2014.7094441"},{"key":"10.3233\/JCM-194051_ref12","unstructured":"Y.E.H. Shehadeh, S. Bamgartner and G. Hirtz, A blind timing and frequency synchronization method based on the correlation characteristics of an OFDM signal, in: 2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), Stockholm, 2015, pp. 480\u2013484."},{"issue":"1","key":"10.3233\/JCM-194051_ref15","doi-asserted-by":"crossref","first-page":"14","DOI":"10.1631\/jzus.C0910150","article-title":"Blind carrier frequency offset estimation for constant modulus signaling based ofdm systems: algorithm, identifiability, and performance analysis","volume":"11","author":"Xu","year":"2010","journal-title":"Journal of Zhejiang University Science C Computers & Electronics"},{"key":"10.3233\/JCM-194051_ref16","doi-asserted-by":"crossref","unstructured":"W. Li and M. Tomisawa, A Post-Detection SNR-Aided Timing Recovery Loop for MIMO-OFDM Receivers, in: IEEE International Conference on Communications, Glasgow, 2007, pp. 5114\u20135119.","DOI":"10.1109\/ICC.2007.845"},{"issue":"10","key":"10.3233\/JCM-194051_ref17","doi-asserted-by":"crossref","first-page":"1746","DOI":"10.1109\/26.871399","article-title":"An early-late timing recovery scheme for filter-bank-based multicarrier transmission","volume":"48","author":"Louveaux","year":"2000","journal-title":"IEEE Transactions on Communications"},{"key":"10.3233\/JCM-194051_ref18","doi-asserted-by":"crossref","first-page":"15","DOI":"10.3233\/JCM-2011-0374","article-title":"Mining redundant industrial alarm occurrences with association rules extraction and complex networks modelling","volume":"11","author":"Almeida","year":"2011","journal-title":"Journal of Computational Methods in Sciences and Engineering"},{"issue":"7","key":"10.3233\/JCM-194051_ref19","doi-asserted-by":"crossref","first-page":"332","DOI":"10.1109\/LCOMM.2003.814713","article-title":"Early-late timing recovery with decision-feedback equalizers","volume":"7","author":"Louveaux","year":"2003","journal-title":"IEEE Communications Letters"}],"container-title":["Journal of Computational Methods in Sciences and Engineering"],"original-title":[],"link":[{"URL":"https:\/\/content.iospress.com\/download?id=10.3233\/JCM-194051","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,21]],"date-time":"2026-04-21T22:06:01Z","timestamp":1776809161000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/full\/10.3233\/JCM-194051"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,9,30]]},"references-count":15,"journal-issue":{"issue":"3"},"URL":"https:\/\/doi.org\/10.3233\/jcm-194051","relation":{},"ISSN":["1472-7978","1875-8983"],"issn-type":[{"value":"1472-7978","type":"print"},{"value":"1875-8983","type":"electronic"}],"subject":[],"published":{"date-parts":[[2020,9,30]]}}}