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Slepian based channel interpolation for LTE uplink system with high mobility

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4 Author(s)
Karakaya, B. ; Dept. of Electr. & Electron. Eng., Istanbul Univ., Istanbul, Turkey ; Cirpan, H.A. ; Arslan, H. ; Can, A.

In this paper, due to optimum finite time and frequency support feature of discrete prolate spheroidal wave functions (DPSWF), we propose a Slepian (originally known as DPSWF) based channel interpolator for LTE uplink systems in high speed environments. The proposed channel interpolator is applied to recover the time variation of channel between training symbols within two consecutive slots in a single subframe. The performance of the proposed interpolator is compared with polynomial interpolator whose order is adjusted to achieve best fit under particular user mobilities.

Published in:

GLOBECOM Workshops (GC Wkshps), 2010 IEEE

Date of Conference:

6-10 Dec. 2010