{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2023,5,29]],"date-time":"2023-05-29T09:11:42Z","timestamp":1685351502846},"reference-count":0,"publisher":"National Library of Serbia","issue":"4","license":[{"start":{"date-parts":[[2012,1,1]],"date-time":"2012-01-01T00:00:00Z","timestamp":1325376000000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["ComSIS","COMPUT SCI INF SYST","COMPUT SCI INFORM SY","COMPUTER SCI INFORM","COMSIS J"],"published-print":{"date-parts":[[2012]]},"abstract":"<jats:p>We propose a low-complexity carrier frequency offset (CFO) estimation\n   approach and an independent component analysis (ICA) based semi-blind\n   equalization structure for the orthogonal frequency division multiplexing\n   (OFDM) based multiuser coordinated multi-point (CoMP) systems. A group of\n   orthogonal sequences are employed to enable separation and simultaneous\n   estimation of multiple CFOs at base stations, dividing a complex\n   multi-dimensional search into series of low-complexity mono-dimensional\n   searches. Then, a small number of pilot symbols attached to the source data,\n   are used to resolve the ambiguity problem in the ICA equalized signals. It\n   has a low complexity, as the permutation and quadrature ambiguity can be\n   eliminated simultaneously, rather than sequentially by the previous precoding\n   aided method. Simulation results show that the proposed semi-blind\n   equalization structure has a bit error rate (BER) performance close to the\n   ideal cases of the zero forcing (ZF) and minimum mean square error (MMSE)\n   based equalization with perfect channel state information (CSI) and no CFO,\n   and also significantly outperforms the constant amplitude zero\n   autocorrelation (CAZAC) sequences based CFO estimation method.<\/jats:p>","DOI":"10.2298\/csis120303051j","type":"journal-article","created":{"date-parts":[[2012,12,28]],"date-time":"2012-12-28T10:31:33Z","timestamp":1356690693000},"page":"1385-1406","source":"Crossref","is-referenced-by-count":1,"title":["Orthogonal sequences based multi-CFO estimation and semi-blind ICA based equalization for multiuser comp systems"],"prefix":"10.2298","volume":"9","author":[{"given":"Yufei","family":"Jiang","sequence":"first","affiliation":[{"name":"Dept. of Electrical Engineering and Electronics, the University of Liverpool, L GJ Brownlow Hill, Liverpool, U.K. + Dept. of Electrical and Electronic Engineering, Xi\u2019an Jiao Tong Liverpool University, Suzhou, China"}]},{"given":"Zhu","family":"Xu","sequence":"additional","affiliation":[{"name":"Dept. of Electrical Engineering and Electronics, the University of Liverpool, L GJ Brownlow Hill, Liverpool, U.K."}]},{"given":"Enggee","family":"Lim","sequence":"additional","affiliation":[{"name":"Dept. of Electrical and Electronic Engineering, Xi\u2019an Jiao Tong Liverpool University, Suzhou, China"}]},{"given":"Huang","family":"Yi","sequence":"additional","affiliation":[{"name":"Dept. of Electrical Engineering and Electronics, the University of Liverpool, L GJ Brownlow Hill, Liverpool, U.K."}]}],"member":"1078","container-title":["Computer Science and Information Systems"],"original-title":[],"language":"en","deposited":{"date-parts":[[2023,5,29]],"date-time":"2023-05-29T08:30:48Z","timestamp":1685349048000},"score":1,"resource":{"primary":{"URL":"https:\/\/doiserbia.nb.rs\/Article.aspx?ID=1820-02141200051J"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2012]]},"references-count":0,"journal-issue":{"issue":"4","published-print":{"date-parts":[[2012]]}},"URL":"https:\/\/doi.org\/10.2298\/csis120303051j","relation":{},"ISSN":["1820-0214","2406-1018"],"issn-type":[{"value":"1820-0214","type":"print"},{"value":"2406-1018","type":"electronic"}],"subject":[],"published":{"date-parts":[[2012]]}}}