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For example, for a system with a bandwidth of 10MHz operating in the low frequency region (2-11GHz), a two-dimensional averaging algorithm outperforms other algorithms, such as a bilinear interpolation algorithm, because the correlations between the pilots and signals are sufficiently high in both the frequency and the time dimensions.<\/p>","DOI":"10.4018\/jmcmc.2010040105","type":"journal-article","created":{"date-parts":[[2010,6,30]],"date-time":"2010-06-30T21:09:38Z","timestamp":1277932178000},"page":"67-77","source":"Crossref","is-referenced-by-count":0,"title":["On Uplink Channel Estimation in WiMAX Systems"],"prefix":"10.4018","volume":"2","author":[{"given":"Yushi","family":"Shen","sequence":"first","affiliation":[{"name":"Microsoft, USA"}]},{"given":"Pamela C.","family":"Cosman","sequence":"additional","affiliation":[{"name":"University of California, San Diego, USA"}]},{"given":"Laurence B.","family":"Milstein","sequence":"additional","affiliation":[{"name":"University of California, San Diego, USA"}]},{"given":"Eduardo F.","family":"Martinez","sequence":"additional","affiliation":[{"name":"Freescale Semiconductor Inc., USA"}]}],"member":"2432","reference":[{"key":"jmcmc.2010040105-0","doi-asserted-by":"publisher","DOI":"10.1109\/TBC.2002.804034"},{"key":"jmcmc.2010040105-1","doi-asserted-by":"publisher","DOI":"10.1049\/el:19930777"},{"key":"jmcmc.2010040105-2","unstructured":"Edfors, O., Sandell, M., Beek, J.-J. V., Landstrom, D., & Sjoberg, F. (1996, September). An introduction of orthogonal frequency division multiplexing (Tech. Rep. No. SE-971 87). Lule\u00e5, Sweden: Lule\u00e5 University of Technology. ISSN 0347-0881"},{"key":"jmcmc.2010040105-3","doi-asserted-by":"publisher","DOI":"10.1109\/26.701321"},{"key":"jmcmc.2010040105-4","doi-asserted-by":"crossref","unstructured":"Frnandez-Getino Garcia, M. J., Paez-Borrallo, J. M., & Zazo, S. (2001). DFT-based channel estimation in 2D-pilot-symbol-aided OFDM wireless systems. In Proceedings of the IEEE 53rd Vehicular Technology Conference (Vol. 2, pp. 810-814).","DOI":"10.1109\/VETECS.2001.944491"},{"journal-title":"Introduction to Numerical Analysis","year":"1987","author":"F. B.Hildebrand","key":"jmcmc.2010040105-5"},{"key":"jmcmc.2010040105-6","unstructured":"IEEE-SA Standards Board. (2005 August). IEEE standard for local and metropolitan area networks, Part 16: air interface for fixed broadband wireless access systems. 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