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Estimation and compensation of clipping noise in OFDMA systems

Chen, Ying, Zhang, Jian (Andrew), & Jayalath, Dhammika (2010) Estimation and compensation of clipping noise in OFDMA systems. IEEE Transactions on Wireless Communications, 9(2), pp. 523-527.

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Abstract

We propose an efficient and low-complexity scheme for estimating and compensating clipping noise in OFDMA systems. Conventional clipping noise estimation schemes, which need all demodulated data symbols, may become infeasible in OFDMA systems where a specific user may only know his own modulation scheme. The proposed scheme first uses equalized output to identify a limited number of candidate clips, and then exploits the information on known subcarriers to reconstruct clipped signal. Simulation results show that the proposed scheme can significantly improve the system performance.

Impact and interest:

10 citations in Scopus
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4 citations in Web of Science®

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Full-text downloads:

148 since deposited on 07 Dec 2009
24 in the past twelve months

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ID Code: 29143
Item Type: Journal Article
Additional URLs:
Keywords: OFDMA, Clipping Noise, Compensation
DOI: 10.1109/TWC.2010.02.090128
ISSN: 1536-1276
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ELECTRICAL AND ELECTRONIC ENGINEERING (090600) > Signal Processing (090609)
Australian and New Zealand Standard Research Classification > TECHNOLOGY (100000) > COMMUNICATIONS TECHNOLOGIES (100500) > Wireless Communications (100510)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Schools > School of Engineering Systems
Copyright Owner: Copyright 2010 IEEE
Copyright Statement: Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Deposited On: 08 Dec 2009 09:32
Last Modified: 01 Mar 2012 00:16

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