SHERP

Joint Channel Estimation with Phase Noise Suppression and Soft Decision Decoding Scheme for OFDM-based WLANs

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Authors
Kim, Seong-Cheol; Kim, Yong-Hwa
Issue Date
2005-09
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Citation
VTC-2005-Fall. 2005 IEEE 62nd Vehicular Technology Conference, vol. 1, pp. 161-165, Sept. 2005
Keywords
Orthogonal frequency-division multiplexing (OFDM)quadrature amplitude modulation (QAM),channel estimationphase noise (PHN)wireless local area networks (WLANs)
Abstract
In orthogonal frequency-division multiplexing
(OFDM)-based wireless local area networks (WLANs), phase
noise (PHN) and channel estimation errors can degrade the
performance of the system. This letter provides a soft decision
decoding scheme analysis for OFDM-based WLANs in the
presence of PHN and channel estimation errors. Basing on this
analysis, we propose a novel iterative scheme for joint channel
estimation with PHN suppression and soft decision decoding. In
addition, the soft decision decoding metric for QAM OFDM
systems is modified to mitigate the effects of PHN and channel
estimation errors. The simulation results show that the proposed
scheme mitigates the performance degradation due to PHN and
channel estimation errors effectively.
Language
English
URI
http://hdl.handle.net/10371/7808
DOI
https://doi.org/10.1109/VETECF.2005.1557492
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Electrical and Computer Engineering (전기·정보공학부)Others_전기·정보공학부
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