Please use this identifier to cite or link to this item: https://doi.org/10.1109/AUSCTW.2009.4805591
Title: Highly time varying channel estimation for OFDMA uplink transmission in IEEE 802.1 6e network
Authors: Rabbi, M.F.
Hou, S.
Ko, C.C. 
Keywords: Channel estimation
IEEE 802.16e
OFDMA uplink
Time varying channel
Issue Date: 2009
Source: Rabbi, M.F., Hou, S., Ko, C.C. (2009). Highly time varying channel estimation for OFDMA uplink transmission in IEEE 802.1 6e network. Proceedings of the 2009 Australian Communications Theory Workshop, AusCTW 2009 : 6-11. ScholarBank@NUS Repository. https://doi.org/10.1109/AUSCTW.2009.4805591
Abstract: Basis Expansion Model (BEM) based estimation is studied for highly time varying OFDMA uplink channel. We consider two popular pilot patterns- pilot placed over frequency-time grid as proposed in IEEE 802.16e standard and pilot placed on the time axis. In a high Doppler spread scenario, taking Inter Carrier Interference (ICI) impact from data block into account, Least Square (LS) estimator is developed for both time and frequency domain pilot aided estimation. From the performance analysis and simulation result, it is shown that, time domain LS (LS-T) estimator performs better than the current frequency domain estimator. The computational complexity for time domain LS is also discussed. © 2009 IEEE.
Source Title: Proceedings of the 2009 Australian Communications Theory Workshop, AusCTW 2009
URI: http://scholarbank.nus.edu.sg/handle/10635/70481
ISBN: 9781424433575
DOI: 10.1109/AUSCTW.2009.4805591
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