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On Uplink Channel Estimation in WiMAX Systems

On Uplink Channel Estimation in WiMAX Systems

Yushi Shen, Pamela C. Cosman, Laurence B. Milstein, Eduardo F. Martinez
Copyright: © 2010 |Volume: 2 |Issue: 2 |Pages: 11
ISSN: 1937-9412|EISSN: 1937-9404|EISBN13: 9781609604165|DOI: 10.4018/jmcmc.2010040105
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MLA

Shen, Yushi, et al. "On Uplink Channel Estimation in WiMAX Systems." IJMCMC vol.2, no.2 2010: pp.67-77. http://doi.org/10.4018/jmcmc.2010040105

APA

Shen, Y., Cosman, P. C., Milstein, L. B., & Martinez, E. F. (2010). On Uplink Channel Estimation in WiMAX Systems. International Journal of Mobile Computing and Multimedia Communications (IJMCMC), 2(2), 67-77. http://doi.org/10.4018/jmcmc.2010040105

Chicago

Shen, Yushi, et al. "On Uplink Channel Estimation in WiMAX Systems," International Journal of Mobile Computing and Multimedia Communications (IJMCMC) 2, no.2: 67-77. http://doi.org/10.4018/jmcmc.2010040105

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Abstract

In this paper, channel estimation algorithms are proposed and compared for uplink WiMAX systems, which are OFDMA based. These algorithms are investigated based on a dynamic resource allocation scheme, and it is shown that each of them is suitable to specific system scenarios. 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.

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