Channel Estimation for OFDMA Uplink: a Hybrid of Linear and BEM Interpolation Approach

Authors:
Yi Ma;R. Tafazolli
Affiliations:
Center for Commun. Syst. Res., Surrey Univ.;-
Venue:
IEEE Transactions on Signal Processing
Year:
2007

Citing 0
Cited 3

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On pilot design for channel estimation and MUI reduction in uplink OFDMA systems

WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference

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Abstract

We consider the channel estimation for the subband orthogonal frequency-division multiple-access (OFDMA) uplink. The channel for each subband is modeled by combing the linear and Fourier basis-expansion functions. Based on this mode, a two-dimensional interpolation approach is proposed for the channel estimation, which is carefully investigated in terms of estimation error and pilot placement