Adaptive decision feedback orthogonality restoration filter for windowed OFDM
Resource
Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th
Journal
Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th
Pages
-
Date Issued
2001-10
Date
2001-10
Author(s)
Huang, Pinchieh
Lee, Yumin
DOI
N/A
Abstract
OFDM is a promising multi-carrier modulation technique that can effectively mitigate impairments caused by wireless communication channels. In some OFDM standards (eg, IEEE 802.11a), windowing is employed to reduce sensitivity to frequency offset and phase noise, and at the same time conserve bandwidth. However, windowing causes the loss of orthogonality between subcarriers. We propose a decision feedback orthogonality restoration filter for minimizing orthogonality loss due to both windowing and inter-block interference. Simulation results using IEEE 802.11a parameters show that the proposed scheme achieves significant performance improvement.
SDGs
Type
journal article
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