Performance analysis of a decision feedback orthogonality restoration filter for IEEE802.11a
Resource
Wireless Communications and Networking Conference, 2002. WCNC2002. 2002 IEEE
Journal
Wireless Communications and Networking Conference, 2002. WCNC2002. 2002 IEEE
Pages
-
Date Issued
2002-03
Date
2002-03
Author(s)
Lee, Yumin
Huang, Pinchieh
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 (e.g., 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. In this paper, we proposed 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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